1st pix of the flower:
Looks a bit messy in the background. I feel that the flower does not stand out from the background. This being the case, a longer lense could have been used to "further isolate the flower" from the background with the use of Depth of Field which makes the background more blur. Shooting white flowers is always tricky. Choice background carefully. This is a lesson I learn from my mentor Steven Yee from PSS.
Need to define what is the purpose and main subject. This is a good interplay of the use of DOF/differential focusing. But it lacks something....main subject.
Thanks Hotshot, ExplorerZ and truth-photographer for your comments! These shots were taken with the 17-40mm 4L with no PS works except the borders of course.
1) Comment noted for this pic. My original intention was not really to isolate the white flowers only but to give a wide perspective of the white surrounding white flora with the 3 white flowers as the main subject... but certainly wished i had a telelens thou!
3) Agreed! No main subject... this shot was an inprompto shot as i scouted arnd for nice angles... found this angle but cant find any subject ;p