work on blending render into bg with effects, also learn to use filtering to creat effects, using the render its self set multiple times on canvas with waves n ripples and slight blur makes good bg's
How long have you been into PS? Anyways, along with what Xed has said, try to do some tutorials. It's a good start.
Ok so you won't be good after few weeks, it takes time and practice. Suggest reading some tutorials and making outcomes of them so the effects and techniques you learn stick to you.
