If I were you, I'd change the cliff's black edge to an orange colour, and add tufts of grass by showing highlights and shadows. I think perhaps most of the foreground of the cliff would be much darker.

I'm quite fond of the "glow" around the figure and the cliff, it makes the scene look lively and vibrant.

Also, the brown cliff edge looks way too smooth, again, working with highlights and shadow should create a jagged look.