Thanks for the comment! I never did consider whether Zero actually enjoyed the fight or not, but it's an interesting point. Zero was after all corrected as a reploid of destruction, but given his recent role as an antihero burdened with guilt of his past, I doubt he finds much pride in his bloody work.
Nonetheless, he'll continue to lend his strength for those he believes in and do his duty-- with or without relish.
Nah you didn't need to draw him larger. It just looks like Zero is a little far away from him, that's all. It's gotta be the surroundings. Even if you drew Omega larger, it would still look like Zero's far away because of the scenery.