Tell her to keep up the great work. It really is a good shot, the entire flower is in focus but the background is blurred enough that it does not compete.
Now here are my thoughts on how to improve the photo:
The subject of the photo is the flower itself, there is alot of wasted space on either side that serves no purpose, it does not add to the story, we get there is alot of greenery around the nice yellow flower, we don't need to see three miles of it.
Cropping it to portrait would mean that it reduces the amount of wasted space. It would also get rid of the thin distracting leaf sticking up on the left. It would also make it so that the flower was in the top 2/3's.
I don't know what editing software you have but you could also try using layers and layer masks to drop the brightness of the surrounding greenery.
All I did was crop it but it could be further improved by cloning out the dead end of the left bottom left:
