Those are very well done. Interesting idea for a thread. If there aren't more like this out there, it would be neat to do them now with modern software. With the Sitwell Park green, I never really considered until now, how difficult that would be to mow with a modern mower. Here is a nice little article on the green and MacK's response to the criticism that it triggered.
https://www.egd.com/?p=1150I tried something similar with colorizing Mill Road Farm photos a while ago just to get a feel for what it may have been like, but I didn't do as professional of a job. I'm not a photo shop expert and hacked my way through these with a free program that was photoshop like.
This seems like a decent place to post them if the topic in general is colorizing B&Ws.
approach to 2nd hole
Approach to 6
18th green from the right side (10th hole- par 3 in the background)- this one is sort of a weak effort, but still a little interesting
The pool at the Lasker Estate. Not golf architecture, but it is just such a relaxing image that was part of the experience there. If you could get in your time machine and take a dip, this wouldn't be the worst choice.