Rustic Cottage Hilltop Forest Sky Partly

Design an image featuring a rustic cottage on a hilltop, with a small forest in the background. The sky should be partly cloudy with hints of a sunset, casting warm light. Replace the windmill with a whimsical treehouse that has colorful flags. In the foreground, depict a serene lake with a small boat and a few people engaged in leisurely activities, capturing a peaceful countryside atmosphere.