its not bad for a first but too much problems for me to point out in here, i suggest heading over to the tutorial section
Nice for the first one. The colors are fitting. Well you need to improve your flow and get starting to work well with depth and lighting. Good job so far, the text is not that great but you will get it soon. Maybe look the one or other minute in the tutorial section, you can use labeled psds, too, of course.
as mentioned, not a bad start....maybe read thru and try a tutorial or two...but keep at it, you will get better!!