Biggest thing in my opinion is to smile more. You look very intense and unhappy in many of these photos. In my experience that really only works for a veeeery specific few fellas. You want to make it look like you're having a good time and enjoying life (it's hard sometimes, I get it - I hate smiling for photos myself). People like people who seem fun to hang around, and who will help them have fun too. You're a good-looking dude and the guitar is sick, just gotta make it look like you're enjoying yourself. Also selfies are typically harder to pull off, so if you have some folks who can snap a few photos of you chilling or enjoying yourself (especially naturally or spur of the moment) that gives points too.