If a deer gets so close that the hunters fills the "frame", as in the photo, you're likely busted:)
As a lifelong visual artist and art teacher for 25 years I see the natural world differently than most hunters, just as hunters see the world differently than non-hunters.All good points above, though.
I think a face mask makes a big difference for deer and definitely turkeys.
Of course, being stealthy means more than camouflage. It means keeping movements slow, reading a deer's body language(which comes from experience), moving at the right time,shooting a quiet bow, etc.
I took this yearling last fall in NC, she was with a mature doe and another yearling at 8 yards (for five minutes before I shot)! I was 12 feet up a tree(I told it was way too low:) Check out my camo!