HP - Waiting for Severus

Yeah, a young Lily Evans during her school time in Hogwarts, sitting on the stairs near Slytherin common room, waiting for Severus ... Yes, a little Severus/Lily ship!^^
I know that there's something wrong with the prospective and the colors look ALL so different from the original (my scanner sucks!Y_Y), forgive me... I have some problems with watercolors...
I just try... as always!
full view could be better!