Contest Entry - Sierra and William Get Down

The insertion is quite simple given the circumstances of the scene used. It does leave a bit to be desired in terms of interaction, despite the simplicity of the situation. Like maybe the characters could have had a small moment to acknowledge each other to create a bit more purpose for your insert to be there, but given that it's a very random and silly scene, it's also understandable why it's presented this way.

The scene is immediately recognizable!

William is doing what he does best : P

Going the extra step to make it video format is very cool! I'd say all the rules except for a slight bit of one have been followed. The one rule being the style issue - Your character is done uniquely, but William looks extremely close to his original appearence from Montage 3.5 Memes. Particularly the mid-dancing moves look almost identical.

I'll focus mainly on the style you used for your own character, since that seems to be your normal drawing style. It has a cute anime-like style going for it. Some advice I'd give is that for the anatomy, the head seems a bit overly round and cartoony in comparison to a more realistically designed body. I'd suggest either giving the head a bit more shape, or stylizing the body a bit more.

The facial features suggest a stylized/anime look as well. As for those, I don't recommend copy/pasting the eyes and simply flipping them. It makes the reflection and/or shading mirrored and makes the light source just seem wrong, and possibly gives the character a cross-eyed look. And for the rest of the shading, it seems like you have a general idea of it, but the colors appear very light to where they're almost not noticable.

Lastly, I'd suggest maybe trying out different thicknesses for the black outlines. It doesn't have to be anything too drastic, but it tends to look nicer on such styles. For example, lines coming to a thinned-out end on places like hair or where the armpits are. And thicker in areas that may be shaded.

I hope that helps you out! Apply as you see fit and good luck!