Truesay, also choice of focal (central) doesn't really help the composition.
Not always true, you get plenty full spectrum signatures amazingly executed, you just need to either emphasise the focal through a combination of saturation/chroma, or like, not ruin the composition through making it look like an amateur photoshop experiment.
Text can be amazingly executed, you just have to learn it in a way of its own, and frankly, being lazy as most of us are, that's the reason most people tend to leave it out (it's a whole world of its own, typography).
DoF fits into this, it's a very flat depth at the moment, since it looks like a low aperture photo (where everything is on one plane of focus), so your eyes jitter around the photo looking for the focal which will look quite weak, because of the lack of contrast in focus between the BG/MG/FG.
Basically, work on composition, depth, more subtle lighting, and avoid using black as a background colour, since it tends to restrict and look unprofessional, especially as in the render/stock used, the shadow colour isn't actually black (it's a little lighter, purplish and reddish grey).
Using colour techniques in photoshop such as the curves adjustment/levels adjustment helps.
. Nice work, nonetheless.
