Anyone up for flying kitties

okay so i asked my sister to make a picture of a little kitten(baby cat) with feather wings, so this is a creature sugestion for a little flying kitten, the stages are egg, stage 1, adult(well kitten), so this will be the first creature to have 3 stages instead of 4.

what the all the stages look like:
egg: a black egg with white wing patterns

stage 1: little cat with 2 feathers(white) were wings should be, black body with gray under belly and black up top

adult: little wings(white)(that match the body size) black body darker gray under belly

base sketch: