I have just finished a few architectural renderings this past week for a really exciting villa design located in China. I started out the illustration as a daytime scene, but decided to take advantage of all the glass and go with a dusk scene. I put a ton of post-processing time into this image. You can see from the kerkythea rendered image below that not much was left untouched. I spent about 2 hours setting up the model and rendering in Kerkythea. Then another 4 or 5 hours in Photoshop. Half my time was spent looking for materials and images online. Usually, I go with a blue color overlay for this time of day. However, with the amount of concrete and glass, I was afraid the villa would come off feeling like a cold office building. A simple sky and lots of red and yellow color overlays were used to warm up the scene.
Above- Sketchup image export
Above- Quick Kerkythea rendering used as the base image in post processing