I NEED HELP AAAAAAAAA (over dramatic title)

Ok seriously tho, i'm kind of having a problem where i can't think of a cool avatar to do, and when i do, most of the time i cant make it correctly bc either A: There isnt a SINGLE accesory on roblox that fits the idea i have or B: it ends up looking shitty. So, can some of you guys give me tips so that I can make cool avatars? Also, I'm just gonna put my OCs pictures so that you guys can criticize them too.