IMHO, the attached photo and at the about page looks great! I ain't experienced high-key photographer but those YongNuo flashes are nice based from experience. I got one for myself as a second speedlight. At the time I bought my YongNuo was only about 1/7th of the Canon 580 EXII which I think is great. I made a side-by-side comaprison fo the YN560 and the 580EXII and at full power, they are indistinguishable but as I power down (1 -> 1/2 power), the YN560 was about -1/3 of a stop which I think is not bad.

I ain't sure if this helps or just a buzz.

Anyway, best wishes on your photography business.