I prefer the main flowers to have a "fluffy", "large" bloom. Then I chose a smaller "accent" flower. I found the smallest flowers at home from a different shopping trip that never got used & liked the combination of colors. I wasn't sure if I was going to work the flowers all the way around the wreath or just around half of it, but I play with that as I go along. Once everything looks right to me, I use a hot glue gun to keep everything in place. Then I finish it off with a simple bow.
And since I have 2 front doors (don't know why), I had to make two. ;)