You have the most amazing eye for a picture. The way you have combined the various (non) focal planes in the last one is fantastic.

Why does nobody want the F 100?

Lovely sequence. Joe public rarely ever sees things like this.

I think the tighter crop works better as it emphasises the two characters whereas the wider one distracts from them. Either way, it's a wonderful B+W.

Combine ZP is free, as commented above. It does a good job and is relatively easy to use. The only potential glitch is its habit of leaving the edges of the final image unfinished so when you prepare your images for processing, crop them slightly generously around the edges to allow for that unfinished edge. You can then crop the final product to intended size and lose what isn't wanted.

Both simple and beautiful.

One trick that's obvious once you have done it is to pull the screen out horizontal and with live view you can hand hold it happily right down to ground level and see what you are doing.
If those pictures are any indication (right at the start) then I'm looking forward to seeing them once you've got the hang of it !

The A 50mm 2.8 macro is a superb macro lens and doubles as an equally good walkabout. Were it 1:1 it would give the preset MACROTAK a run for its money.

There will be a main Post Office sorting office in Exeter. Can SRS deliver it to there? If you were not at home that's where it would end up anyway.

There is one on Ebay right now. They come in two guises: the hard to find earlier one with the preset aperture is 1:1; mine is a fantastic bit of kit. The non preset 'auto' version is only 1:2 but good nevertheless. 20mm of tubes will make it somewhere around 1:1. Even a short tube will set the lens forwards, making the auto/manual switch much more accessible. It will be right up against the camera body otherwise. You can expect to pay around £100 ?
If you don't have a set of (preferably non-auto) tubes they are highly useful and can be had for £5-£10. The leather cased Asahi set is excellent.