You're not authorized to upload another artist's work, no matter if you don't mean any harm with it it's still considered illegal and I'm pretty sure is very displeased with your action.
I strongly suggest you delete all the stolen pictures in your gallery. Otherwise you' can be sure you'll get reported in the blink of an eye.
Oh look at all the hidden comments, Why did you hid them? By the way, I really don't want to be mean, but take down all my work from tumblr, and why do you use my username+Tumblr?