Interesting lines! I like the colour combination of browns & blue with a bit of green too. The out-of-focus wall at the bottom bothers my eyes a bit... I think I would like to see the closer, lower part of the wall & window in focus, as well as the plant. It seems your focus point is way up the window. F 3.5 doesn't give you much depth of field. You could try either shooting with the plant as your focus point and a much smaller aperture, which will make more of the picture in focus. Or, if you want to suggest it's a frog looking up, then use the wide aperture but focus closer to the bottom & let the top of the picture go out of focus. That would make it seem farther away, higher up from your little frog