This is beautiful. I've always love your art style, but this is really a masterpiece of yours. There are still space for improvement, but it's great with necessary details, suitable highlights, and great perspectives. It may be just a mere sketch, but it brings out the feeling of warmth and the "light in the dark", which is exactly what a cabin in the forest needs. The shape of the tree arch could be better though. But overall a great art. Hope to see more work from you soon.