I got bored during my free time in college and decided to try my hand at the competition for this week.
it runs like a cat)
When you say dog, you mean panther right XD?
But yes, Mikau is right about the shading, I suggest you look into the tuorials on the pixeljoint forum if you have not already.
It looks quite pillow shaded. Click here to see a very helpful guide to see what I mean, and how to fix it.