Minor Project: House designs

This afternoon I have been focusing on designing the house I started out with a few concepts and then decided to paint in black and white to get the values correct and going back to basics to try and improve my painting. This is the idea I have come up with so far. I want a dark looking building with points and long curves. I haven't finished this yet as I really want to push it as far as I can but at the same time I don't want to get too involved in a design that isn't final yet.