The pine floorboards look much better and the shadows really add a lot to the depth, nice work. I like the angled roof, the only suggestion on that would be that the edges are to perfectly cut off. It would look even better if the edge were slightly irregular.

Final suggestion is the railing is to plain. The railing shadow looks good but maybe add posts to the railing itself. Something like this for example: Click image for larger version. 

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