You need some earthy tones to help it blend into the natural landscape instead of sticking out like a big peach. For the WALL color I would suggest Benjamin Moore Shark skin (2139-30) with the trim or accents (Deck?) in Horizon Grey (2141-50) pictured here: The shark skin on the wall has a slight earthy green/brown tone to it. It will go nice with the stone.

Don't have a budget yet but id be open to more elaborate ideas too. I like the idea of painting the cream siding sage instead. What about having the siding sage but also changing the trim to a white or cream? Don't have any more pictures of the front but will have more by the end of the month when we move in! But here's one of the back to see the cream siding with the black trim

Flo, I like your sketch very much (although without knowing the basic sun/wind info I mentioned above, it may or may not be what she needs.) However, the suggestion of polished black Japanese river stones for a first time home owner in Oklahoma is probably not helpful.b You will drain her budget and she will find herself looking at dusty, not shiny, stones. If she likes your concept of creating a dry bed/ river effect (as I do), you or someone else might teach her how to do this with grasses native to her area. Ones that can be easily propagated by division, require no water or weeding, and will blow in her prairie breezes while attracting birds and wildlife. Can, I urge you to google images of landscapes by Oehme, Van Sweden. They are known for using sweeps of native plants, especially grasses. My suggestion to you is to play around with flexible hoses or ropes in dividing your wide open space to see what shapes please you. Then imagine the spaces filled with different color blocks of various heights. Which ones do you want moving, which ones static? Designing a three dimension landscape from scratch like yours can be overwhelming. Break it down into digestible parts. 1) Gather all information about your conditions. 2) Get out the hoses and ropes and draw on the ground like a canvas.

Landscaping would help a lot. You have a nice big area with some shrubs all bunched together on the right side near the garage. Depending on what they are, I'd remove them or at least some of them. I'd plant some additional flowers and or low growing shrubs there instead of the grass. I'd also plant some small flowering tree to mask that expanse of brick on the left. I'm guessing there is a matching window that we don't see. I'd get rid of the shutters on the larger windows. They are too small for the window size. Do you plan on painting the siding? The white really contrasts with the brick in a not good way. I'd paint the siding a different color that is more similar to the brick and the garage door the same color.