Seems odd that the cabinets weren't just extended to give more of a landing on that side. What's the distance between the wall and the peninsula?

Can you do some shallow floating shelves? Or even just a really great piece of art. If you remove the bins do you even need something there? Not every wall needs to be filled. Especially as it looks like this is a walkway.

How about a mobile island or bar? Does the kitchen lack any working space or storage?

I agree with either putting a piece of art or a clock. Since it's a walkway, I wouldn't put a cabinet or other piece of furniture there.

How about a little hinged bench seat with storage below? It'd be somewhere to plonk the shopping bags, a kid, a coat, a cat, etc ...

PS I'm amused by your "very important" description of client and project; do designers ever call their clients and projects "not so important," or "fairly unimportant" ? :)

I can’t add a tall wall cabinet which is what I would normally do because there is a power outlet and a light switch in the middle of the wall height wise.

Move the outlet & switch to the end gable of a tall cabinet, like is done with islands.

Pretty small thing to pay an electrician considering the overall cost of cabinets.

Looks like there is a HVAC vent that needs to be considered as well.

I'm with Kaillean, move the outlet, keep the switch. It looks to me like a refrigerator was supposed to go there, once. The outlet behind my fridge is at the same height.

Or how about some open storage like you can see in this image? Not everyone cooks enough to want pots and pans so visually accessible, however, but it is pretty and a great use of space!

Cooks' Kitchens · More Info

A bar?

It doesn't look as if that walkway is wide enough to add any sort of cabinet son that wall anyway.

I'd remove all the cabinets and counter/backsplash to the left of the wall oven. They are what is making it look as if that wall is missing something. With those gone, just hang art. The wall oven by itself will look like a natural and complete stop.

It would help if you posted more pictures from more angles. And a wider shot. I'm guessing on half this advice.

Switches and outlets can easily be moved.

If you have not had switches and outlets moved now is the time to add that to your repertoire this is an easy thing to have done and always if it helps good design BTW every client should be very important so that comment is not important.

That is odd that the cabinetry didn't extend further, but as it is now I wouldn't do anything there. It will only draw more attention to it. There is not enough room to add anything functional there, and art will just make your eye go there which is not what you want. The only other thing I would consider is if that drywall wall can be shortened to open it up a little more and not have so much blank space there.

The light switch and outlet can be easily moved by a handyman or homeowner. Easy. I've done it in my house. Don't let those 2 things block you.

Move the outlet and switch. extend the cabinet and counter or install a tall cabinet.