I loved the attention to detail and clean look of this pattern, I downloaded it a couple of days ago.
I was trying to work out how you managed to make the background not recolourable. Did you do it by turning it that area black on the alpha level and setting white as the filler colour?
That area is black in all four channels and the background is set to white, yes. I'd actually rather have the background be recolorable, but I'd have to sacrifice the details controlled by the alpha or else lose the recolorability of either the leaves or one or two of the roses. :/
Thanks for all the nice comments, folks, I'm glad you like it.