Hmmm. The scale of the background seems a bit off compared to the scan :P
Actually I'll run through this in point form so it'll be easier ^^
- Scale of scan- perhaps the scan can be made a bit smaller. She looks pretty huge. Maybe it's the other way
around, I can't really tell x_X But yeah ^_^'
- Moon- firstly, moon and clouds are speaking against each other because when it's cloudy you dont' usually
see a moon ;) And I think the moon should be behind the clouds- so that should be some basic reshuffling. Hopefully your
moon is on a different layer to your clouds :D
In fact, I personally think the wallpaper might look a bit better if the moon was a bit towards the centre, rather than
at a corner looking like it's part of the wallpaper... yet trying to run away ;)
- The text doesn't go with the wall as fluke has mentioned. I think if you removed the text (or selected just one
line), you can move the scan a bit to the left.
- The water is a bit too saturated. I think you can tinker with this with the Mode> Adjustments>
Hue/Saturation.
You might even be able to throw in a slight gradient, because water usually has a few different colours. Some basic
sparkle brushes can also work. Also, I think if you scale the water downwards, it will make it look a bit softer. The
horizontal lines look a bit bunched up ;)
- You might want to consider a water reflection :P (but very very faint at like 5% opacity)
- You will need to gaussian blur your fob/ mist more ;)
- Gradients in the sky will be nice too :D Generally the sky away from the moon should be much darker ^_^ So you might
need your colour burn tool, because the clouds on the right at the moment are illuminated from the top, when the moon is
to the left :D
I hope that was of some help and provided some food for thought :)