Perhaps the entire wall but with a simpler tile layout to keep it from dominating the scene?

I'd tile the entire wall, including the small space over the door. Agree w/suggestion above for simpler tile layout.

lighter grout and up to bottom of hood only. leave some wall above and work on higher installed rod for window treatment as you want some height illusion and you can do that above a window w a shade/valance or other. no advantage to tile above the hood line as the top of door has nice character glass insert and as said you can do something w a window treatment. light grout color . dont rule out a good classic subway tile pattern either.

I would have said bottom of window to the door trim (you don't NEED anything more behind the range) but tile in that pattern requires more height...so I don't know.

What is the size of those tiles?

You could do a stainless panel between the top of the stove and the bottom of the hood. Then tile the backsplash normally everywhere along that wall.

Height of bottom of cabinets on right over to the door and box in under hood vent. If you cannot get a full tile in, with this pattern, I would tile all.

I hope the tile is a small mosaic, otherwise I don't think it will work in the narrow spots. I think either A. Upper cabinet height all the way across and to the hood above the range.

B. Up to the bottom of the upper cabinet continuing around the corner. Then tile to the height of the top of the range along the window wall, tile up to the hood over the range. I would tape up paper to gauge the proportion. My first thought was up to the range hood along the window wall, but only if you hung the window covering from the ceiling, otherwise the balance seems off. If you are not tiling behind the range however, I would tile to the height of the back of the range.

I agree with @herbflavor and like the backsplash suggestions posted.m

I'm thinking of your lighting - are you able to also consider a light with 2 bulbs, to see better? or LED that's integrated in....

under cabinet?

In your case the whole wall, it will be too choppy otherwise.

steel appliances - how about light in the silvery finish, chosen same time as backsplash. Or in white, etc....

point one at stove, other toward frig....

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This is as dark as the floor, and would 'show' too much probably.

But if your other rooms have furniture style, etc... or quite rustic look, maybe this would stand out in a good way.... don't know!?

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Dimmable

here is whole wall of tile using simple subway. if you want entire wall I'd stick w this for your situation.

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How about an arched backsplash?