I can imagine a story behind this image, but i am not sure, it will be the same one as you intended. Some parts are difficult to see without looking at the high res.
The iguana should be much darker; almost a silhouette as he is backlighted. There is not that much light reflected from the interior of the sauna.

I love the look of the skin on her face and hand, that's really cool. I can imagine the lizards tongue shooting in through the window and snatching the glove off of her hand. I do agree with dustinger about the lighting though. With it being so bright, it looks more like she's looking at a very bright television on the wall rather than looking out a window.