Don Briggs:
Crocus Macro Study
Guido F.J. Ehlers - gfje:
Driving wheel of steam locomotive
sunstormphotography.com:
Carlin Gill Valley, The Howgill Fells (Explored).
L.Lahtinen (nature photography):
Flowers... (Explored Mar 12, 2015 #2)
Don Briggs:
Skagit Valley Barn with Moon focus stack, Washington State
©DocTony Photography:
pollen factory
Jonathan Kos-Read:
Sand & Wind
xiaoran.bzh:
Vulcania