Oh. My. God!

This is absolutely fantastic. The colours are just WOW. There is so much saturation, and its perfect.

The flowers just never end, right up to the horizon. I really like how you can see the mountains and hills in the background, and the sun shining down on the flowers in the back.

You can even see roots at the front under the sunflowers. I was honestly blown away by this.

The only "crit" I can think of is that part of the sky is overexposed, but I think if you tried to fix that it would make the flowers too dark and anyway some white in the sky like that just makes it perfect.

So basically, there is nothing at all I can critique.
And guess what! This is going on my wishlist.

Fantastic job! My first complete 5/5 too.