Take the time to search the interwebs for different designs.
What you have here is a very simplistic, low impact design that just is a business card. Over the course of a few years i have found that low-impact cards are for the simple businessman or accountant or some other job that has a pretty straightforward idea and task but you, you are a performer. You need to use and sell yourself in ways that is not needed by a local judge. You are being hired for your style, routines and charisma not your mathematical skills(although depending on what you are performing this might come into play). A business card should be practical yet striking enough that you can make an impact right away. A good idea is to use your business cards for effects and especially those that require a great deal of intimacy. A memory is far more powerful that the need to see just you. They will come for the emotion not for your choice of suits.
On this card in particular, try to think through your color. You are young as i see and the colors reflect that. Although i don't want to state that you should convey more adult sight i just think the colors convey a type of childish flare that gives off the wrong impression. Try to use a more clean style which shows that you are "age appropriate" but leaves room to doubt your age.
I really can't go deeper than that since the way you guys do things over in the US is far different from what i experience here. Also the style of your business card esthetically is not pleasing to me since i'm more of a minimalist with a strong emphasis on typography. Search around the web especially
http://creattica.com/ , deviantart.com and everything else you can find. There are tons of sites for inspiration and ideas on how to make the best of your design.
M.