SNK. Levi and Mikasa

I think this is my first serious draw xD
One great anime with 2 greats charas...I had to make a great art! o.o
I know it can be so much better but I worked hard to get this. 
Don't be shy and give me your opinion! ^^   (I accept criticism xD)
Thank you!! <3~ 
~ L.Zaky