I really like the square format and how the background is just blue... I mean, it heavily contrasts with the typical green that you would think would be associated with these daisies. I like the naturalness of that and how it doesn't feel out of place that the background is blue, there.
The depth of field is lovely and I like how there is a faint vignette with things.. it wouldn't hurt if it was made bolder, but eh.
The focusing is great, anyway, and I like the way the daisies are composed. The positioning is awesome and.. yeah, I don't really have any suggestions.
You could have lowered yourself more, but it's pretty fine as it is.