When I showed Digital Phil and explained that it didnt look right, we agreed that it would be best if i had a main focus point to the image first and also to not make it look flat. So, to improve on this, I will 'zoom out' of the view and step back a little, showing more of the volcano so that it has a defined shape and is easier on the eye. The same with the moat.
So, here goes..... :S :S oh, and the layers messed up a little too :(
Just working out a composition
I drew a quick sketch of the wall detail first before adding colour.
Same image as above, just deleted the wall sketch layer.
Grass detail in the corner was added
Added the moat detail- was meant to resemble a dried up moat with a patch of water- i used a textured brush for the mud in the moat so that it looked dried out.
It's not clear to see from this image but i used a grass shaped brush to create small patches of grass springing out of the ground.