X2 Unfinished poster

SO here is the problem... i dont know what to draw below sigma to the right of x or above zero... I started on another piece that is going to define my style from there on out so this is somewhat using an older style .. its the evolution between my previous style and my current one im working on.... 

EDIT: Coloring has begun! I've revamped my Megaman logo (which may be cleaned up a little more) but as for the drawing itself I decided to go simplistic and focus on the characters in that part of the game, in which ill dedicate a second poster in the future to other characters that aren't in this...