I drew a Frogitt sprite in battle. Could you tell me what I could add to that?

Guys, look!

Something (:

Here are two sketches of the skeleton brothers. :/

I think this will be the final version for Toriel's sprites.

Something :/

As promised, here are the new (redesigned) monster sprites.

Idk :/

Here's another monster sprite for you. This time the ally, his name is Violet

Here's a random screenshot for you :)