The artist is EyeKissa (deviantART) or iKissa (FurAffinity). She has been inactive on both sites for a long time now and I haven't been able to contact her via notes there. I've also emailed the address that was attached to her PayPal, but that was several weeks ago and I still haven't heard back from her.
So, if someone here knows her and how I could contact her, it would be much appreciated!