Hey, sorry for the late response, the holidays definitely kept me busy!
Thank you so much for asking. I really appreciate it. Before I can say yes I need to know if you'll be making any profit for your fairy tale? And also let you know that if I do say yes it'll be a version of the image with a small watermark in the corner and I ask that you have a link to my page some where on the page where you post. Does that sound fair?
Jessica, of all the links you've provided on your main deviant page. This is by far my favorite. The upward angle is great as the water's surface provides excellent contrast against the model and also offers slight hints of reflection of her red hair. I would say to use this for your promo card, however as a word of caution, it might pigeonhole you into a strictly underwater photographer category and you're far more versatile than that.
It's tough, you have a broad selection of work to choose from and they're all wonderful. Good luck.
P.S. If you are ever in need of models to shoot (which I'm sure you're not) you can always get my number from Shane.