Adding mirrors and flowers improves the room appearance a lot. While selecting mirrors one can go for the larger mirrors as they are easier to install and clean in comparison to smaller mirrors. Flowers also add to the beauty of the room if they are picked up fresh. Paper flowers also do fine if they are kept clean and replaced once they have been over their life period and get worn out. The corners can always be filled with some large vases and flower pots to give the room a fresher and greener view.
When you first get started on home interior decorating, it is a good idea to have at least some notion of the kind of color scheme you might like. That is not to say that you cant change your mind while you are working out a plan. It is much better to change at this stage than when you already have the paint on the walls.