Do you mean literal contrast or something else? I'd like to understand this so I can improve the art!
And yes, I'm not sure about the left/right limbs because I plan to do double-claws or sword & shield setups. However, there are 4 parts and you can choose to change and each boss only has three. It's missing robot torso, grass hopper arms and dragon legs. I definitely want to add those in and maybe a fifth part that it would be an "amulet" or something passive. Thanks so much for the feedback :D
Stay tuned, we plan to implement in the game every feedback we got and add a little bit more polish and fine tuning to the game. Perhaps even new bosses hehe