Environmental Concept Sketch - Fantasy Landscape

This is just something that I had in mind by a couple of days... I did no sketches for this, just started putting colours over each other to get the basic shapes and idea. Then giving values to objects.
I didn't go in much detail just basic coloured sketch of a Fantasy Landscape!


Regarding the flying creature and the man on the horse, I just wanted to give very few detail of them, only give some life to the image.