It might be a little bit of the wall on the far side of the window - looking a little like it's not angled away enough both in the texture and in the angle of the shadow of the leaves... But that said, the colors are gorgeously soft and it does have a really nice, relaxed mood. Looks like a nice window to be looking out of there.
Exceptional work. Such a gorgeous infusion of colors. The play on shadows in the environment (on her body, the window sill, etc) is spectacular. Gives everything such a lush, dusky sense of the afternoon in Spring or Summer and, despite your misgiving, an absolute sense of depth. Really lovely work.