Unless I'm seeing things these are all published photos and they are all colorized B&W pics
Yes,
You are very perceptive.
The title gives a clue. "As Europe prepares to celebrate VE Day's 75th anniversary, brilliant colourised photos show the Allies advancing into Germany ahead of the Nazis' surrender." Note the British spelling. I've seen a few before but thought they are still worth mentioning.
If you can find it, "Entering Germany" by photographer Tony Vaccaro contains a number of interesting photos taken from December 1944 through the occupation to 1949.