Painting sunflowers

The sunflowers I'm growing this year are a different variety than last year so changes need to be made on the center. I was worried about the balance of yellow tones that I'm beginning to work in so I brought in another flower and scanned the painting to get a better idea of how it looks. Sometimes you can get too close to your work and need to back off and look at it from a different perspective.

It will help me decide what to do with it next.