WIP: Thundarr Vs Thundercats in Thunder Dome

The first in a series of poster images I'm working on. Using Clip Studio Paint Pro, 8x10" canvas at 300 dpi. Using the "Pastel" tool to draw the rough shapes. Man, I miss drawing with actual charcoal and pastels...

In ring center is Thundarr the Barbarian Vs Lion-O (which is sure to initiate a huge "Who Would Win?" internet war. Also planning to do a Panthro Vs Ookla and Chittiara Vs Princess Ariel poster. C'mon, nerds would line up to buy this book, amiright?