I was putting together some art guidelines for O.L.D. and N.E.W. so that the detailed art order could be compiled. Here's the intro to it. I think I've hit on the basics fairly well there.
“Anime-like” or cartoony styles should be avoided. We're going for a more realistic approach here. Don't be afraid to sometimes depict non-“bodily perfect” characters – not everyone is a bodybuilder or a supermodel. Make it feel real. Avoid chainmail bikinis and deliberately skimpy armor unless there is a very good reason for it. Equal gender representation, it's very important to have diverse ethnicity, too (for humans - doesn't matter for blue aliens with knobbly heads!), and no explicitly exploitative poses or images. Avoid supersized “anime” swords. Where possible, figures should be depicted in context.
“Anime-like” or cartoony styles should be avoided. We're going for a more realistic approach here. Don't be afraid to sometimes depict non-“bodily perfect” characters – not everyone is a bodybuilder or a supermodel. Make it feel real. Avoid chainmail bikinis and deliberately skimpy armor unless there is a very good reason for it. Equal gender representation, it's very important to have diverse ethnicity, too (for humans - doesn't matter for blue aliens with knobbly heads!), and no explicitly exploitative poses or images. Avoid supersized “anime” swords. Where possible, figures should be depicted in context.