Thank you both for your comments! I agree that an injection of color would help in livening up the mostly green landscape. It's funny how you don't notice these things as you build them and then it seems fairly obvious after others mention it. I'll keep a better eye out for differing colors in future MOCs. C:
@Halstud: The roof came along as an afterthought actually. I built the cottage without giving much thought to the roof. I ended up taking two plates, connecting them with hinges and basically dropped it on top. As for the river, I got a ton of trans blue 1x1s during a recent trip to a LEGO store and I thought they would do nicely for water features.
"Evening, madam. I'll be having your bricks now, if you please." - The HighwaymanMOC Page