@Ensign Elliott pointed me in the right direction with this, although I used Copilot AI rather than ChatGPT to generate a snow scene from a picture of my Moorpark layout. Here's the original and the AI versions:






It's not bad at all. The AI image has few anomalies but you wouldn't know if you didn't see the images next to each other. It couldn't read the "Moorpark Junction" sign clearly, so it generated one of its own. It cropped the left side of the picture, maybe because it was out of focus and it didn't recognize the double-track mainline and made one single track instead.

Took about two minutes to generate the new image. Pretty amazing, really.

This is the problem with some of these AI enhancement tools, they don't just work on your image they selectively replace stuff.   

I noticed this when I gave one of the cheap online photo enhancers a blurry old photo of two of my long missed cats, hoping it would simply do a bit of sharpening. What I got back was a cute photo but clearly were no longer my cats. 
Worse still, the so called "try it for 10p" offer had actually set up an unauthorised recurring monthly payment for £49.99 from my PayPal account, which fortunately I spotted and cancelled after PayPal prompted me to review it!  (I then found several people reported this thievery on TrustPilot).

@ntpntpntp Send me the picture of the moggies if you like and I'll run it through Photoshop - I've got access to the full-blown Adobe Creative Suite here.

@LASteve   actually now that you mention it, so do I have access to Adobe Creative Suite.   I currently have in my possession a recently deceased modelling friend's Macs and other devices while we deal with his estate.  He was a school reprographics tech.