First , Welcome to the community !
Looks like a great job on your first shoot , I'll second the thought about filling in more info in your profile area . I could not figure out where you were from ( did not see the little co.uk on the photos) London ??
I would recommend posting in the 'main community forum' - just my opinion that more people read that than the 'model topic' area
Better area to say HI to the masses
Love the second image - good tonal range and great expression (eye contact and smile)
the color one is a close 2nd - just a few too many stray hairs
tip = this is a good place to learn ( you might need a thick skin once in a while )
read over old posts like the Review/Critique forum , you might see what others think work and don't work ( mostly it's technical , lighting and such) BUT should also be comments there on what poses work/don't work and why
Best of Luck , hope to see more from you