Im gonna give you my fashion photographer point of view:
On most pics you look old(er).... Obviously on videos/film that does not matter but is harder to start later than earlier.
Tats are not good for pictures, so you would have to forget about that and you should go with long sleeve tops to any castings, you do not want them 'labeling' you.. for the cheeze parts...
Out of the pics I saw.. I like 3 and 5 best. I do not know if you paid a lot for them, but you should shoot some more ( then again i have never seen u in person, so i can't say that u look worse or better in pics than in person )
FYI - An acting head shot should be top of the shoulders up, clear face, lil make up.. with a natural smile.
Here you have some of my fashion pics:
http://www.musecube.com/verseau