I took these as it looked like the Forget-Me-Nots were coming to the end of their run, and I've always liked the particular shade of blue they show.
The Blue chromatic abberation is most likely due to a slightly unorthodox lens mix of a CL49-200 close-up and a ACW-100 wide adapter both on the front of the A2 set at 200mm macro equivalent.
I took it in JPEG+RAW setting - this is the cropped JPEG.
I'd be interested what the 'Flower Experts' think! Its more difficult than it looks getting lighting and DOF right, even indoors by a window.