It's DISMAL, I know - boring colours, flat composition. Not much to be done with it, but scroll down anyway to see the effect of cropping, increasing the colour saturation, and clicking on two Photoshop filters called Rough Pastel and Angled Strokes, You can choose settings for these filters but they show up right away and you can play with different ones.
These notes are not intended as tutorials but to show what can be done easily, and with other editing programs as well.
Simple improvements are really quick once you are familiar with a few tools. and for the creatively inclined, the sky really is the limit.