I cannot understand how you can manage such great image in such a small amount of time. The small version looks like a photograph and I sort of understand how it is made with the brush strokes and all but at the same time I cannot achieve anything even in remote comparison. Great work!
I like as is. I'm sure you can take it further and it would look great but as a concept and a piece I don't see a reason to render out to a crazy level. It delivers an idea, a mood, and it shows a lot of skill was needed to paint this up. Great job