Playing with flowers

So we had some flowers here at home, and enjoying watching them start to open, thought it might be fun to shoot them, photographically. So..with the white background being the reflector and using the SB800 in remoted mode I had a bit of a muck around and play. Here's one of the better ones. Would appreciate critique of the harshest kind! First image taken with the 17-55 and second one with the 85mm 1.4 .
Tulips: Coming out!
Purposely exaggerated the saturation:
And with the use of the black background:
Increased contrast and saturation:

Tulips: Coming out!

Purposely exaggerated the saturation:

And with the use of the black background:

Increased contrast and saturation:
