The proportions must be taken into account when we consider the size of some objects in relation to other objects in the room. For example, a large piece as a piano located near a huge sofa would look disproportionate in a small room.
There are two types of visual balance: symmetrical and asymmetrical. For example, you can place on a table two candles, each on one side of it. This is a symmetrical balance. The two candles represent each other’s mirror image.
The asymmetrical balance is made when two different objects are placed symmetrically. For example, using the same table, you can place a candle on one end and a long thin vase in the other end. Both are placed symmetrically to each other, but are not the mirror image. However, the size and location in which they are placed will balance the space.