Answer : The first step is to find out the types of houses you want to decorate. Decide what type of house and room shapes are easiest for you, including walls, windows, doors and skylights. Draw floor plans with dimensions. Find out how many rooms per average house - 3-5 or more?
You should also know about color coordination before deciding on a room's style. It is critical to use your own skill level when deciding on a final design.