When one's garden is of a certain size, the opportunities for making different styles are many; but this makes for difficult decisions. Also, if the garden designing carries you away, there is lotsa work and lotsa expense!
Personally I've always been wary of large ponds, as I once had a friend who moaned night and day about how much time he had to spend laid on a ladder across the pond so he could furtle about in it's depths. He showed me the rung-marks on his chest! Happily there's an oxbow lake just below our garden - a remnant from a long ago Teifi wend across its flood plane. That's Eirian's pond, not mine. He can do the ladder thing.
Like Al, we were tempted to do allotment style fruit & veg growing. There was an old polytunnel surrounded by bramble-jungle when we arrived, at the the bottom end of the slope where those stone walls are now. But everyone and their dog has a polytunnel around here so as soon as you make friends, they start offloading their excess veg on you - tons of it! And their eggs (they all have hens), And their honey, And .....
So we decided to grow only soft fruits as, unlike cucumbers and courgettes, one can consume any amount of strawberries, raspberries, currants of various hues, etc.. Just now I'm looking like a strawberry as I'm eating about 20 kilos a day! Or it feels like it after I've gorged.
***********
Watering isn't usually a problem in West Wales. No. Just this very minute, a huge thunderstormy downpour has given the whole place a solid soaking. If it does get dry, we also have a water supply that comes up a deep, deep pipe via a pump, sucking on an underground river that never goes dry. Very tasty water, too - after it's been through the rather expensive filters. No water bill but filters are not cheap. No hosepipe ban either.
Another technique is the use of a mulch to keep the water in the soil from evaporating too quickly. Although it was bought and spread to improve the soil and suppress the weeds after landscaping was finished, minced redwood bark does a great job of keeping the soil underneath damp for ages through a dry spell. About 3 inches deep seems optimum. We spent gawd-knows how much on many, many cubic metre bags from the local sawmill. It's also good for growing them strawberries on, as it seems to stop both rots and slugs. But you do have to hump it and spread it.
***************
The view from the garden amplifies its charms. And we didn't even have to pay for it! Several neighbours, farmers and foresters made it and they let us look at it for nowt.

- The slumping spot 1

- Across the Tefi to Brecha Forest

- The slumping spot 2

- Lupins

- Dawn
Cugel, channelling Bill & Ben (or maybe Little Weed).
“Words ought to be a little wild, for they are the assaults of thoughts on the unthinking."
John Maynard Keynes