These flora studies are done by Amy Ng, an artist from Malaysia who runs a blog called Pikaland. They are lovely both separate or together, I think it's so wonderful that she really got the flow and curve of the flowers. Click the image to see them larger, the small version doesn't do them any justice.
It makes me want to get out my watercolors again and paint something that was inspired by this trio. I just went through some of my old watercolor paintings the other day, and I think my painting aesthetic has changed a lot since then. Maybe I'll dabble in some soon!