Yeah that could have helped. Even so, his voice was ok for the most part. Thewlis worked really well as an unassuming mortal disguise and he could still even have voiced the character. But they needed a bigger dude to wear full Ares costume and he should have not had his face visible through the helmet. Just two red eyes.
Despite seemingly mostly positive reactions to her, I'm still seeing some unfavorable comparisons to CATS pop up. All I can say, after watching that bizarre trainwreck last night, they are far off the mark. Even if the CGI isn't perfect, she leaves that monstrosity in the dust.
At least she's supposed to be creepy and uncanny valley, but somehow cat Rebel Wilson and mice children are far more horrific.