I like it, some parts tho that I think I can mention about it.
I take it the window in the centerleft is for the icons like you did on your previous wallpaper. I really like a style like that, also like the round thing inside that.
I can see you tried to do some lines and abstract stuff on it. when you watch it closely tho, you can see that not all the lines are totally straight, the line on the left (2nd from top) widens a bit. but thats only noticeable when you look at it very detailed I guess (unless ofcourse you meant for that stuff to be like that)
also the left side might look better if you remove the sudden black in it, the small black part you have.
overall very nicely done and I like the character on it + nice color combination
I was pretty bored so I paid close attention to details