Beast Boy (Arrowtongue) fights Alien

This is my first drawing ever submitted. It shows Beast Boy that has transformed into a T-Rex sized Arrowtongue (a fictional creature from the book Expedition by Wayne D. Barlowe). I tried to show that they're fighting on a very sandy planet cooked by 4 suns (3 are seen at this angle). I don't know how Beast Boy found his way there but he sure knows how to pic a fight with a Chrisalis Eater like Alien.