Nice looking portfolio! I would advice though, that you should first give out free or vouch copies of your work. This will enable you to get more people to trust your service. Since you are relatively new here, not much people would trust your services yet. Just remember to give out free copies to trusted members and don't give it out to brand new accounts and below full member accounts. It will be worthless to give it to them as no one will trust their reviews. But, if you do give them a vouch copy, posting the work you made for them would be nice to see on your portfolio! Good luck OP!
Heya! Well as for vouch copies, I've got over 1500+ reviews in various websites besides here. But since I understand that it's hard to trust a new member. For bitcointalk.org users I will first make the graphics and then let you pay for it. All of my other clients pay before the work is started. This should help me get some reviews on this forum!