I thought it might also by appropriate seeing that we are "in transition" from two challenges into one.
I think the topic is wide enough and abstract enough to allow just about anything to be eligible... I really do not wish to start off the first joint challenge having to make tough rulings about what is on-topic and what is not.
So, transitions ...
from old to new
from black to coloured
from dark to light
from smooth to rough
from young to old
from small to large
from natural to man-made
from wet to dry...
... I am sure you get the picture.
Be wonderfully creative... and show us your interpretation of "transition" or "transitions".
Canon Image Challenge Grayscale
Adjust your monitor's brightness and contrast until you see 26 shades of gray.
1st Place: "After-harvester" by MCsaba
2nd Place: "Windows In Progress" by Penny Street
3rd Place: "Life After Death" by Bruce Jones
4th Place: "From Flower To Seed" by shu
5th Place: "Critical Care" by Traveller
6th Place: "Phases" by MCsaba
7th Place: "From natural to artificial light" by Michael Kilpatrick