In order to create height in this design we've started our flower placement with liatris or blazing star. Liatris is a great flower to use to achieve linear effects. Two liatris are placed high in the design, with one a bit taller than the other. Note how tall we are coming. Don't be shy in this area.
Height adds to the importance of the design.
Next we place two liatris, one on either side of the vase arrangement, parallel with the table. The first four liatris definitely set the overall shape of this design. Finally two more liatris are placed in between the top two and the side two. The design as shown in the last visual looks a bit sparse and very rigid. We need to somehow break the severity of the liatris.