While I like verdigris, I think black would be a really classic look that would go well with the house style you describe, the limestone and the patio color. I can't really see the verdigris with the plum pavers, and I also think you will have more choices in black. We bought our Woodard furniture about 8-9 years ago and absolutely love it. It is Ramsgate in Hammered Pewter, which is a dark gray.

It sounds like a liveable situation so long as they don't mess up the area or try to steal your food. I say enjoy it while it lasts. I'm guessing someone raised a couple of orphan vulture chicks and they're imprinted on humans. Claire

I was thinking of doing the same thing. Painting my interior sliding door back in the dining room with light oak floring with white windows in the kitchen. Kitchen is white with grey colors in the dining room. I thought this was a nice picture from decoist.com 40 Stunning Sliding Glass Door Designs For The Dynamic Modern Home

With that mat (rusty red and gold colours), I would avoid pink, purple or blue flowers and go with yellow, red, white and orange. For example, a couple of pots of crocus and/or daffodils in the planter in the spring, then switch them out to annuals e.g red trailing geraniums, then gold or bronze chrysanthemums in the fall when the annuals die. Add some ivy to trail over the side. I like the mat because it has the gray of your siding and is still quite colourful. I'd avoid blue mats if you're looking to match flowers to it - there is less selection in blue annuals. For the chair or bench I suggested, it needs to be small. We have one in that spot - only 11" deep, 40" long, 16" high. Very plain painted wood. We find it very useful. Similar to this but ours is even smaller. Search for outdoor dining bench or patio dining bench.