Check it out in Safari, it goes completely wrong, things missing, others overlapping and hiding other divs. If I’m honest, it is nothing other than mediocre, it’s not bad, it just isn’t anything special.
it looks nice but also it looks a bit unorganized.
Considering your age, you’ve come a long way (I’m 15 myself). Your HTML has some major faults. You’re missing a doctype and things are generally not marked up very semantically.
The structure of the site is great. One-page sites for freelancers seem to be all the rage now, and yours doesn’t disappoint.
If I were you, I’d probably brush up just a little on my HTML skills, and then get some more visual design skills! You generally seem to be strong in jQuery, PHP , etc. so you can spend some time on the visual aspect
Keep up the good work!