I wandered down to Pitlochry station and took the following picture. The editor of the local community magazine is interested in using it for the front cover of a future issue. The constraint is that it must be 216mm square. Here is my effort.
_CTW5284_02.NEF.xmp (40.8 KB)
_CTW5284.NEF (50.3 MB)
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A great photograph - thanks for the opportunity to play with it.
My attempt in GIMP, definitely not an improvement, I tried to get a bit more detail in the roofs and a hint of the tree which is behind. However, it has accentuated the lens flare.
It is a pity to have to crop it to a square. I think it loses some of its impact.
I let go of the 1:1 constraint that @epeeist has put upon him. I understand why, but it doesn’t do the image any justice in my opinion.
Man, there’s a lot of lens flair going on here. I did not try to tackle it in any way, kinda like the effect.
Thanks for posting, not the easiest RAW to edit.
Hello @epeeist, I’ve been playing with your photo but to make a nice looking 1:1 crop is in my opinion not possible. I tried the right side so leaving out the platform (is that the right term?) but that was not a convincing composition. In fact I could’t find any charming square crop. When I were you, I would go back to the station and take some new shots with a square result in mind.
Really hard to decide what to crop away if it needs to be square! So I decided to make two variants…
Mony cheers fur this bonny photie!
Accepted, it eliminates much of the “leading line” of the train tracks.
Man, there’s a lot of lens flair going on here. I did not try to tackle it in any way, kinda like the effect.
Yeah, it’s a feature, not a bug. 
Interesting problem, a bit different than the normal PlayRaw… 
Sooo, I’m going to assume the rendition is to some print at 300dpi, because cameras don’t really care about such dimensions. I developed your image with the regular RT camconst.json primaries, as-shot white balance, and a bog standard filmic curve.
Oh, and I kept the proof demosaic (half algorithm) because it just happens to downsize to a useful resolution. The original raw is dimensioned 8288x5520, and the half algorithm takes it down to 4144x2760. Your 216mm square requirement works out to the following at 300dpi: 216mm / 25.4 to convert to inches ~= 8.5, 8.5 x 300 = 2551 pixels, which is fairly close to the 2760 vertical dimension of the half-ed raw image. So, getting a square crop that provides the needed resolution is essentially this:
Look at the parameters pane at bottom-left; the crop box is approximately square, and the height of the input image, so the problem becomes sliding it back and forth until you’re satisfied with the composition.
What would be the point of posting easy ones? 
Yeah easy ones are no fun at all. What I seem to remember about your Play Raw contributions is that they are all challenging in a nice way and luckily not the standard blown highlights or out of gamut images. I can appreciate that!
Ha, it can’t be too hard or boring either. The Play Raws I posted didn’t get much attention. 
Filmulator with following settings: Skärmbild från 2022-02-02 22-39-20|253x875
Couldn’t bring myself to crop it…love the leading rail tracks narrowing in perspective in the distance…
i also would prefer a different crop here, but since the play ask for a square, here’s my version:
My version…
Darktable 3.9.0~git24.477bc5c41a-1
_CTW5284.NEF.xmp (21.7 KB)
Another version… 
_CTW5284.NEF.xmp (22.1 KB)
You may be experienced enough to know this but if it is the first time you have a photo published my comment might help.
I had a photo of mine on wikicommons that was published in an Art Magazine. It was a photo I was very pleased with. But what looked great on a screen looked a bit dull and luckluster on the page.
My suggestion is to do some printing trials on some paper similar to the magazine and perfect a version for printing.
