Nice bg, and good pose. Only thing i'd recommend is to have either an outline or glow on your font, or to have the color changed to a lighter one because the first letters are a little hard to read. But other than that its really good for a beginner
Much Better contrast ... I use PS .. I just created 2 new layers over original image, matched font and size, Colored and deleted opposing 1/2 of text, merged layers, blend at seam, add layer styles.