with leechwings, they can have more bat-like wings perhaps (two wings), like you know how bats can use their large wings to cover themself and hang upside down? Or basically just emo rainwings without the vemon. Leeches have lots of sharp small teeth, perfect for puncturing the skin to make you bleed, so you could attempt to incorporate that for the jaws
spiritwings could come in an assortment of pale colours (including colours like red!), and like what glamrock_rainwing said, translucent-ish wings (two wings). i say keep with the mind control resistance, but remove the transparent part (maybe nerf the ice breath, just make it cold but not enough to freeze something? you can replace it with the take control of object and maybe small animals e.g mice)
My idea is that each tribe has a unique attribute that makes them important and special, such as Seawings' underwater breath; nightwings mind reading and seeing the future; rainwings' colour changing scales and venom; Icewings ice breath; skywings' incredible flight (actually I don't know what there specialty is); mudwings sibling bond (ok this is a bit of a stretch, but you could say the red eggs); sandwings scorpion barb; silkwings silk; and hivewings stinger. some of these can apply to multiple tribes though, but I feel it would be better if a fan-made tribe had something unique to each one of them
look at me write/type