Awesome, thanks for the critique -that's super useful :) I just happened to be in that cemetery in Lviv at golden hour and got some nice shots. Included in the portfolio to pretend I knew what I was doing. I guess it worked! And lucky me people judging these were not photographers. I think that's what they expect of me more or less: https://www.polycor.com/category-realisation/commercial/architectural-projects/ There are some good pictures on that site, but also not so great ones too. I think I can get something good with a little practice :) The perspective control part is what I needed to know most, thanks for taking the time to write it all out. I knew about the tilt shift lenses, but only to do those bullshit shots, had no idea what they actually were for!
Nowadays everybody uses lensbabies because they're cheap and shitty and ugh. But a decent PC lens is a joy to work with. You can also succeed with Lightroom but you need to be shooting a lot wider than you think. My suggestion is to get the A-Z book, look at what's possible and then browse the stock photo sites for ways the subject you're looking at doing has been done. I would also do the boring conventional thing they're expecting, and then try some more fanciful stuff and see which they pick. Hedge your bets. Keep us posted.