yes it wouldnt look right and be difficult to get in and out. however if you are changing stools and *need* to often seat three, something with a low back or no back that can swivel would be functional and a bit less visually crowded.

(pretty kitchen!)

Generally we recommend 24" of space per person for this type of seating. Your 2 chairs look good, I recommend spacing them differently to be more visually balanced. Love the color combination of your kitchen