Amazing! Indeed, don't change too much! The sense of scale and lighting is just wonderful, so well done.
I'm not entirely sure about the framing/composition though, mainly because the cabin is very close to the edge of the composition.
I like the shoreline you just posted.
A render I'm working on past weeks has much nicer looking water when I use the path tracer, so I'd really like to suggest you try that as well or at least use deferred shading.