Whoa. I'm usually a strong believer in cabinets to the ceiling, but your kitchen forces me to reconsider. Such tall cabinets, on such a short run, look really odd. I would love to see an actual rendering to make a real judgment, but my instinct would be to stop with the 45" tall cabinets. Maybe go a little taller, with an 18" cabinet stacked on top of a 36" cabinet. A few other things I notice:

1. It looks you like have a 30" cooktop and room for just a 30" hood. With a gas cooktop you really want good ventilation, and that means at least a 36" hood.

2. Your appliance garage interrupts your main prep space. You will get much better function if you eliminate that.

It does look a bit strange. Do you have pics of the current space.

Your window looks short in the photo, making the wall proportionally off. If the window was taller I don't think it would look so off, and it's probably too late to consider a window change. You can make the window look larger and taller by putting a roman shade or valance above the window frame and extend the window treatment on either side. Put some colored paper over the window like curtains and see how that looks, or someone who has much better computer skills than I can do it here.

Anytime I read '11 feet ceilings' I think of antiquesilver's kitchen. There are some pictures of tall cabinets in this thread.