The lineart on this is really accurate. Did you use a reference? BTW, I think you should consider using a dark purple on the petals that are facing the light source to create a sense of lighting. It's cool the way it is, but I thought you might appreciate the idea.
It really does look amazing. We had to do that in art. It was vase faces. Like you know, you see faces and a face. I should upload some of my art stuff. Some of it is pretty cool. XD