If your "best foot forward" is a snapshot in a T-shirt, that is understandably going to draw less interest than a professional model shot by a professional photographer with professional hair, makeup, lighting, and expensive clothes.

I've got clothes that probably aren't much cheaper than that, and while I do look my best in them in random photos, it's nothing compared to the response I get when I'm seen wearing them in person. I'm not a model (I don't have the looks), but a man in a good suit is going to provide enough pause to make most women at least consider him. Then it's up to you to be charming.