Have you thought about using EZE Breeze windows to enclose your porch area? I know a place that sells them as a DIY and they ship direct. Their website is archglass.com then click on eze breeze. It may not be what your looking for but thought it might help. Good luck

I think you could easily get a table with 2 chairs back there, or two lounge/Adirondack chairs with a fire bowl. Ikea has some very inexpensive patio options. I agree with handmethathammer that some planters with brightly colored flowers and maybe some herbs if you're a cook would have a huge impact. Get a couple of fairly sizable planters of different heights. Estate sales and thrift stores often have good prices on these. If you get big ones you can put styrofoam in the bottom below the likely root depth to keep the weight and the cost of soil down. Make sure you get plants of varying height (google "thriller, filler, spiller" for an easy rule of thumb) and your local garden store can point you to some plants that do well in your climate. I don't mind the color of the fence--it doesn't look particularly red in the picture. I think it would look great with some wall planters on it with, again, some brightly colored annuals.

I would definitely consider artificial turf. Especially if you border it with live plants, it should look fairly realistic.

Adrian, please, add some more pics from other view points so we can get a feel for how the pool, deck, yard, public access, and house tie together. Thank you.