Maybe because of your roster level
Or your character setup like acc rarity-quality, card set, weapon quality etc… idk man your char seems pretty decent
I think you should try apply to 1480-1490 lobbies 1st… im pretty sure they will accept you
Good luck 
all the comments above proves gatekeeping is a real thing but noone wants to say it. noone joins learning party even when it came out. they get 1 clear and first thing they do is HAVE TItle. might as well call the game title ark. sadly the community think having title makes you good player but it doesnt. it just means you cleared with either the player getting carried or they in a group where they are getting boosted. quit while you ahead 
Idk why but somehow yesterday we also had to wait with 2 supports already in group for vykas to fill the last spot with 1 DPS!! and literally no one joined for 30mins like wtf … (we pulled the group up constantly) and everyone in the group were exp-high roster- had title and wanted a reclear as usual. G1-G3 reclear 1DPS needed was the title. Was so weird to see cause it never happened before and we usually had to wait this long for supports not dps. Same with Valtan we also had to wait at least 10min with 2 supports… But I can’t even say it’s because of the reset day cause I always do my raids on reset and yeah sure there are lots of groups waiting to fill but it goes faster and I always filled groups very fast on reset day. We even talked about this in party finder while we were waiting for DPS to come that it’s so weird that we have to wait for them cause it was never the case lol
the main problems people are having isn’t the builds, classes … its the fact most of them aren’t treating the game as an MMO, get friends, guildies play with one another, interact, form your own groups. People are picky cuz they like to flex on other people not realizing they are damaging their own community. My advice for people in ur situation is simply… get friends!
Why then you make your own party then? Everybody has a valid point, they want to finish the raid as fast and as quick as possible.
For Clown… would you invite somebody that has no showable that they’ve cleared before? No you wouldn’t.
Gear is one thing, but the OP only has level 1 set pieces and no title. This shows he hasn’t cleared the fight ONCE at least on that character.
Would you take somebody with 0 proof on their character that they’ve cleared when you are looking for a quick raid or to clear gates 1 through gates 3? No you wouldn’t.
What Combat Stats do you have?
This. 
Not a single lvl 2 item = not even cleared Gate 1&2 in the past 10 weeks.
So i’d suggest naming your partys “Learning Party - KNOW MECHS!!! G1 + 2!!!”.
You’ll reach Gate 3 after 20-40 wipes.
After 100 more wipes in G3 Learning Partys, it’s gg wp.
Good luck.
So, see ya in 2027 ^^
I smell cap.
I went with my 4x3+2 1480 alt and got accepted quickly.
And still I’m not seeing ur character screenshot
I’m wondering if he has sus Combat Stats
Like I’ve seen some weird shit in Party Finder
im kinda sus towards roster level
which is a big factor on taking people in “reclear” lobbies
OP prolly want to join title or reclear, and refuse to join learning g1 - g2 + g3 learning party.
yeah learning party g3 really painful,especially when u are m4, the team gonna be wipe dozen of times before you reach your mario game
and for OP, if you really sure you have watch ton of guide and know exactly well about g3 mech, u can join g1-g2 reclear lobby, then join the jailed g3 ( focusing on the title pref lobby )
it doesnt matter if the lobby say “title pref” or title only run, they will just drooling over your juicy DPS, trust me i know it well ( i have 3 1475 ilevel sorc 5x3 with title ), and they still choose some low level roster juicer on g3
and if you still unable to clear the raid, then you might be the problem
And then title is acquired by doing Rehearsals
sadly gatekeeping is high, even my geared up Sups were getting declined. It’s only after attaining title I get into groups, but even then my main is declined despite lvl 9 gems 1492, but only 2 LVL 2 gears.
G3 is cancer in pugs, ppl fail on M1 even, sad. I have to live off scraps to find statics who have drop outs to clear
Let’s see. I’m going to assume that, since you are 1500, you was 1475 at Kakul release or you were close to that. Kakul was released on September. If you lose 1st week of Kakul, you would start doing it on October, so 2 month ago. If you couldn’t do G3 first weeks because you were doing it with pugs, you should at least, have set 4 level 2 by doing G1-G3 a couple of weeks.
So my guess is that you over pushed your main time ago and now you came back for Brel or either you were scared to do Clown and now nobody accept you because of that. If I see a 1500+ without set 2 lvl 2 at least in going to assume that that guy didn’t do Clown because he was scare so I might not get him into my party even if it’s overgeared.
Also if you don’t even have set 2 lvl 2, you didn’t do Clown enough to go into a reclear party because maybe you didn’t even clear it once, so what’s the problem for going into a Learning party??? Because, actually,you are learning the raid. Learning party is not the same as Blind party, learning partys use to watch guides but, they are learning, so join to a learning party or you can try in an “Alt run” so maybe if you apply as 1500 to a party of alts at 1475 you might get accepted.
Also, about this:
That’s is KR, I’m pretty sure that the first month at least, people would ask for AT LEAST set 4 lvl 2 for Brelahaza, since many ppl pushed alts to 1490 and might try it with their alts without full set lvl 9 cause it takes minimum 7 weeks to farm. So expect mains runs for Brelahaza to ask for full set lvl 2 and for alt runs for at least set 4 lvl 2, but that is my guess. Also if you have a static this wouldn’t be a problem
You have to make a learning party if you haven’t learned it yet. Do your time like everyone else. Search discord as well, friend the people you party with so you can come back for the later gates
hmm this seems like there might be something at play here… I got accepted on my 4x3 legendary accessories wardancer alt for clown. I find it hard that you won’t get accepted.
using 10 clear title in week 2/3 made sense. now title doesnt and 6p lvl 2 is new req
i accept wd for synergy. idc about ur dmg. sorc can easily pull over 50% dmg even wo synergy
kek if only everyone thinks that way