@JGoldman10,
I can't! That's your job.
Here's an example. As a prof photographic artist, I take great pictures, sometimes very artisitic ones. Sometimes those that what I call art other do not. When I bring the best ot them to to a gallery, they might sell if my portfolio is strong enough.
However, at times, I can fall into cliches. So when I make images which I like but are cliche images, and try to market them, they go nowhere - not in the galleries not in the market place online.
I have to be careful to avoid getting branded as a cliche artist.
If some people here tell you that these characters appear to them to be kitsch, perhaps you should listen? However you don't HAVE to listen. You can bang your head against the wall and allow the market place to tell you the TRUTH.
Try to market those comics with those characters. Remember it's not just the characters, it's how entertaining the whole package is and where and whom your market is. Can you reach a buying public?
Get them out there in the market place and stop obsessing on one or more details.
Paralyzing obsession is more of your problem - far more than whether or not your characters are gay or kitsch ...blue or green or drawn well.