I’m just gonna blow past how this reads like you are using work time/tools to essentially online date and assume everything is above board with your employer and that you live within relatively close proximity to one another.
So… no, you should not just focus on looks in dating. Attraction is important, but that’s more than just about looks for most of us. I will say, however, that it doesn’t sound too promising if you saw his IG and didn’t like what you saw to the point that you are concerned about “the ‘look.'”
You seem to be jumping the gun here either way. It doesn’t sound like you’ve met him in person, but talk about loving all his manners and wanting the same things, but you can’t really know much of anything about him until you meet in person. So start there.