Looks really, really cool. Can imagine this will look awesome when coloured. I love the quality of your lines. Things look very sculptural. One note, I think perhaps the wood box on the left side would totally be in shadow. Also the path leading into it, but I am being a little picky. This is a cute house and I also like the stylized trees. Thick lines come to the front, thin lines fade. Perhaps make the lines in the back a little thinner, and darken / soften the back tree to suggest some atmospheric perspective and depth? Well done, keep it up.