Hahaha funny animation
I like the head, but yeah fix the seam and it will be perfect
Luigi's hat lacks depth. The depth you attempted to create in it does not look true. Work more with the shading. Your color transitions in shading are noticeable enough to make it look plasticy. Also, since when do sideburns/mustaches leave drop shadows? :P
Don't use blending effects the way they are, work with them and make them look nicer.
Ah, thanks for the pointers. I'll see what I can do about the hat.
Also, I actually have quite a distinguished mustacheee myself, and it does leave a lil shadow if the lighting is correct ;) But ya, thanks for pointing that out, I just noticed that I painted the drop shadow for the sideburns all wonky and crooked....and I don't have any side burns for reference, so I'll be removing those.
Edit: Oh, and since I use Sketchbook for all these for fun drawings and paintings, blending and drop shadows and all that fancy stuff is pretty limited, or non existing. I have a few blending modes, but they don't work that great...
I suggest you use photoshop(not endorsing piracy, get a trial version). As for the shape of the sideburns, just entirely remove the shadow. It is nearly impossible to get the shadow of that kind of shape perfect, even with something like photoshop doing it for you, it'd never fit.
nice, now all you need to do is make an awesome mario head and your set to go?