View attachment 1461815
First time trying to use god rays I feel like it looks really odd so constructive criticism is welcome.
The biggest reason why it looks odd is because the scene does not match a real-world setup that is likely to create such "ray" artifacts. The light is too uniform and too bright. Individual rays are more likely to "appear" in a shadowed environment rather than a brightly lit field. And the likelihood is increased if there is some small zone whereby a relatively intense light breaks through into the darkness. The "ray" shows up because more light is shining through that space then its immediate neighbor.
It would work better if she were deeper in the forest. All the trees create a solid canopy and shadow everything. But then there is a solitary fallen tree lying nearby and creating a break in the canopy through which the sun can shine. She happens to lie down in this small sun spot in the middle of a field of shadow and the god rays appear.
Go to google images and type "crepuscular rays" and look at the various images that show up. You'll notice a trend that they are all "mostly blocked" light that has some gaps to shine through.