This is a great picture, mostly because of how good the colors are. Cats are my favorite animal, so members of the cat family are cool too! I really like how there's such a strong emphasis on shading. It looks like the picture is really coming and jumping out at you. The tiger looks a bit too bulky to be realistic, but that never stopped me from liking something before. It seems to keep a cartoonish style.
It may not have much besides the tiger, but it's a nice picture. I like how there's some good focus on how strong the creature's muscles are. The eyes look a bit too small. That was probably just done to emphasize how terrifying the rest of his body is. It's a nicely detailed picture.