These are all really good! The only one I felt didn't match to well was sloth. Granted, I get that this was a choice of humor, but I feel like sloth is left at the doors of laziness and just that. Sloth is more of a lack of want, you can but you don't want anything sorta deal. Of course, avoiding the elephant in the room gamer stereotype, I feel representing lack of action would better suit the cutie mark. I really liked what you did with envy, the cutie mark seals it for me. Just a nit pick, even just a single tear in it would have made me just fall in love with this picture. It's fine without it, but if there was a tear in it or a stitch or something to show it as unwanted, I can't even describe how perfect that would be, but for what it is it's pretty awesome. Soo yeah, rant over.
Yeah Sloth was the one that gave me the biggest problem. I also think a game controller is far to complex looking compared to all the cutie marks. I may go back and give her a new one one of these days