Damien Symonds

Something like this, I guess?

There's no mystery here. The Preview program isn't colour-managed. Only browse your photos in Bridge.

Probably after. Duplicate the Background layer, then extend the canvas size, then move the layer and mask it in.

You should have duplicated and flipped the WHOLE photo, so you had heaps of room for your masking.

Um, no, you just purchased The Raw Class. But don't worry, that one will rock you too.

First, I opened the sky image and cloned out part of the top of the building, to give myself a bit more room to play with: I saved that file as a PSD, and closed it. Then I opened the building photo, and extended the canvas size upwards: Then File>Placed the sky PSD file: I lowered its opacity so I could see where I was positioning it, and put it where I wanted it: Then I increased the opacity to 100% again, and added a mask and masked it on: Finally, I noticed that your sky photo had a weird circle in the middle where it was grey, not really blue. So I added a cooling Photo Filter to that area: (I could have gone back to the sky PSD file and added the cooling there. That would be the more thorough way to do it, actually). If any of the above doesn't make sense, I urge you to take The Layers & Masks Class. It's only a few dollars, and it will change your Photoshop life.

Do you mean the screen is still too cool? Yes, that's fine.

I'll be back shortly to explain the steps.

That sure is a good question. I'd try making it warmer, first, and see what happens.

Yes, that screenshot is from the Spyder5Elite instructions. Did you follow them right from the beginning?

When you got to the analysis part of the calibration instructions, is this the one you chose?

I couldn't find anything particularly recent, but all the older info I could find suggested FastStone doesn't play well with wide-gamut screens

Hey, that looks great.

Hi mate, is this what you meant?

Yes, that's exactly right.

Ah yeah, that's the problem. It must be on "Current and below".

It's kinda stripy?

Are you viewing on your laptop screen? Or do you have a desktop screen plugged into the laptop?

How are you doing it, though? Please be hyper-vigilant about banding.

I tried Channel Mixer, which is the usual way, but the result was no better than simply masking. The more pressing issue is this: I need to know how you intend to do that, exactly.

I'm so sorry, I don't have any tricks for you on this one. Just painstaking masking.

I reckon a Hue/Sat layer, at +50, -45, -60 on the Master channel.

Yep, that's right.

SO sorry about my delayed reply. Have you gone to Settings>Settings (or hit F12), then gone to the CMS tab to make sure Color Management is turned on? Also, do this check, as usual.

Here's another example, at 60% opacity: