I like the white-yellow combo and point of focus, some crop might work very well and I think you should try it and see how it looks, but this is already a very nice image.
I also think a slice off the top would help. I wonder if you tried any other hues for the yellows? I would think a slight push to the orange side of yellow (just a tiny bit) would warm the yellows up a little.
I love your image.
The colors and bits of soft detail are a wonderful mix.
I do like the crop in the second post a bit more but both are very appealing.
Deb