so some tips I have (not trying to be rude, just trying to help ^^) on the sketch layer, label your frames (write the number on them) so u don't accidently move them around. also when u animate the wings, don't draw them close together, then far. Make it close 2-3 frames then a little farther 2-4 frames, then make one farther for at least 3 frames. When its inconsisant like how I said it gives off a more natural feel! What u did was slow slow then quicker. I don't like animating on flipanim, its SO much easier animating on flipaclip (a free app) I think u would b really good at it!! :O))) -I hope this helps, and doesn't come off as rude!! ^^