its the smug grin on the snowmans face, like they're up to no good. i think your penguin looks good, but maybe have a variant with a scarf if you want to add it?
I have already made a scarf version and even tried to add a cap but it constantly looks bad. I will try to animate the wing or add the cap but in general it is for NPC not for playable character so I shouldn't have much work to finish