The quality of art was pretty basic, but very stylized so it suited the animation well. I wouldn't change anything about that. The white blog changing shapes + beepy music reminded me of the old game "A Boy and his Blob", haha.
My main gripe would be the length, and the lack of purpose. It would be really hilarious/interesting to see this featureless little guy walking around or going somewhere during the music, instead of just staying in the 1 shot. Definitely a good basis for something in the future, though!!