Even though it needs certain elements, as you say, I like where you are going. My main concerns are as follows: (1) The hair doesn't look right. There should be more of it in front of her forehead and perhaps it should also cover her ears more as well. (2) The background is a bit too drab for the rest of the image. Keep it 2d, but add a hint of blue to the sky. (3) The lack of shadow on her cleavage is also distracting. (4) Once you've taken care of the above to your liking, add a bit of post to Raquel herself, so that she appears more painted (she is already well-lit for this, but is still a little too plastic). Hope this is helpful to you, as I like this image quite a bit as is. I look forward to seeing where you take it from here :-)