Firstly the text needs to go. Something simple like white arial is better then something extravagent that doesn't suit it at alll. If you cant get a good text just remember simple text suits everything.
Ok, trying lowing the opacity of those white lines over the render or maybe change the layer setting. I'd make the background a little more yellow then use Colour Mixer to get it all to blend. A little lighting/contrast effect as well and it will be a lot better.
Nice try though and it looks pretty decent - it has potential. kiu!