Simple. Let's do a breakdown so we can all learn something! This is actually a great comparison since you are both good looking to have success, so the only real difference is photos.
Manganiello's profile
- Varied facial expressions: neutral, concentrated, smile, confident smirk
- Every outfit and background is different. Clear that photos were taken on different days and at different spots.
- Photo 3 has someone else in it = he has friends
- Two photos indicate he has interests: playing guitar, drinking with friends
Girl's conclusion - this is an attractive, cocky, well-rounded guy with a great smile
Thrice's profile
- Singular facial expression. Eyes look dead inside. Sad. No smiling photos.
- Nearly every outfit and background looks similar. Looks like you did one singular photoshoot in the park (= low value, no variance of activities)
- No photos have anyone else in them = no friends
- Your only interest seems to be skateboarding. No girl knows anything about you other than that you did a photoshoot in the park
Girl's conclusion - this is an extremely attractive guy, he could be a model. But he seems sad, almost like a loner. He doesn't seem to have any friends or interests. Maybe it's fake?