Hi Mayya,
There are a few different options out there for you.
One thing you can do is build a website, and then connect a 3rd party payment processor such as CCBill to it. I think they still charge around 14.5%, but they are probably the best in the industry. They also give you a kick-ass affiliate program to help you boost your sales.
They may charge you for Mastercard / Visa registration, and / or may put a limit per-transaction you can have, but these are actually negotiable. If they give you limits that hurt your business, try to make your case and maybe they can make adjustments in order to work with you.
If CCBill isn't for you, you are now living in the US, you may qualify for a Merchant account with your bank + a gateway processor such as netbilling.com. It is harder to setup, but the cost per transaction is closer to 4 or 5% instead of 14.5%.
We can provide you with a webcam platform that would also let you sell your images and video clips (see
https://2much.net) which includes payment processing, but our platform is expensive for new models so I don't think it would be ideal in your case, at least not yet.
You can always consider getting a custom website from others as there are alot of website builders and programmers out there, or look around for a website template and do it yourself.
You're a great looking model with a really interesting and unique look, and I'm sure you will be even more successful no mater which path you choose. Good luck!