Seems your work has not been showing up on my watch list properly.
The color purple makes an appearance in your work quite often. It's a part of the spectrum I really only rarely venture into in my work, I don't know why that is, maybe because it's hard to use well. In your other pieces where it's there in more of a supportive role, wavering like a ghost on the periphery, bringing attention to the rest of the colors by contrast, rarely see people use it well like that.
A lot of the time colors come from what type of print I make. Though I do like stronger colors, they make the shadows easier to control for me... for many others it's a bit harder to control, considering how one dimensional they can become. I don't like yellows though, unless mixed a bunch. It's fun playing with it, nowadays it's getting hard since chemistry is no longer available.