Hey bleng, Your asking a good question, building a scene is not easy. There is a process that you can use that will help. To start with, divide the picture plane into thirds. Wherever the lines cross is a good place to add important elements to your composition. Then decide on your perspective: one, two or three point. also, where to place your horizon line, this will determine whether your looking up or down on the scene. Then, start working out your ideas in small "thumbnail" sketches. Keep exploring until you find the composition you really like. I hope this and my sketch helps :)