Well, whatever you did in terms of the developing tank and camera side of things, it looks like it worked okay
Decent range of tones from black to white, no nasty clumpy grain etc. Pity you had the same problem as I did last but one film, with dust/fibres etc. - my last but one looked like it'd been dried in a hoover bag
1) I like the composition - good use of verticals with the trees etc, though perhaps I'd have liked to have seen it from maybe a step further back - just to get the left and right ends of the island in frame.
2) wouldn't change a thing - just makes me want to walk into the picture, down the row of trees.
3) Interesting old building, like the use of leading lines, though for me it's a shame that the hedge ends in a clump of bushes that obscure what looks to be the arched entryway of the building. Sadly, without getting in a "cherry-picker" to gain a bit of height, I guess seeing that doorway in frame won't be happening. I reckon you made the best of what you had to work with though
4) I like this one, though if I was being hyper-critical - it looks a wee-bit off level - almost as if the skyline was level, rather than the "wet horizon" - this also makes the tapering chimney look as if it's more Pisa than Pembrokeshire. A gentle touch on the leveling tool, and a dust-mote or two removed, and it'd be sound though. I may even give the chimney a gentle dodge, just to lighten the shadow and bring out the rock detail. It's such a good picture, it's worth the extra bit of "working up" imho.