I didn't add my own color to the yellow and pink one, that was already colored that way, all I did was add a pink and yellow rose I made from those little single Recollections flowers in little bottles.
For the yellow ones, I added just a touch of green to the bottom yellow flower and layered two together and put yellow roses I made in the centers.
For a couple of the flowers I put yellow Liquid Pearls into the center before I added stamens.
The center of the light blue one is made from three tiny flowers I separated from a little Darice bouquet.
All of the stamens are from Darice, and all flowers and centers were glued with silicone glue I got at the hardware store.
Like I said, none of them are masterpieces, but I thought I'd put them on here as inspiration for anyone who can't think of a way to use less than beautiful ready made flowers. These and a ton of simpler ones, such as daisies I added stamens to or added Flower Soft or pearls to the centers, were made in about 3 hours time.