Stratos G:

Male character lacks emotions and expressions, at least on the eyes (eyebrows would also help)

Jackson VonMinden:

I love their little hat props! from one stop motion animator to another, here are some tips. you should look up, and study some mouth shape charts and make a couple more mouth shapes so you can match the voice lines a little better. you should also have the nugget characters move around as they talk to make the scene more interesting, since your characters don't have limbs maybe give them some floating props that they can wave around as they talk to make the scene more interesting. you have some great eye movement at the end with the blue character, I think your animations would look great if you did more eye movement throughout the entire shot! great work!