Araquanid front sprite is quite small... I only let it pass through right now since I know that it is very difficult to pose right without sacrificing the size...
So I'll drop Charjabug sprites and Bounsweet front sprite... Are Z-nogyroP sprites both front and back? Because I'll be dropping them too... I might also drop more back sprites as I scan through the final touches (especially those which are quite small and looks more like a Gen. 5 back sprite)...
Uh, my repository thread doesn't work that way (and I prefer not to do that)... The only reason why the thread messed up like that in the past few months is because of my "inactivity" which was caused by not having internet connection at home (and my superiors doesn't allow me to do them at work during rest times), talk about bad timing... And no, not all the time I'm putting existing sprites in the OP, especially now that the games are already out (I'm getting stricter actually as the time pass)... About Mimikyu, I won't post the Busted form in the meantime since you already mentioned that it's a WIP...
Transparent background is organized properly before... Maybe what you just noticed are people's submissions... Also, do note that I check and edit the sprites (mainly for background color check and to limit the colors) before I post them in the OP... Normally, I'm using 153,211,165 as background...