This is quite a complicated commission especially with four characters interacting with each other. I think you did a great job expressing each of their personalities well, the one in the middle looks totally mischievous and enjoying himself a lot XD.
Thank you Scrawly! x3 Yeah, it's certainly a detailed commission but wasn't too hard even for the expressions. And yeah that one does look mischievous. Steve certainly enjoying himself messing with Curtis's belly. lol