If that’s an actual photo of your place, can I ask how old the windows are and what kind of condition are they in? If you’re thinking of getting plantation shutters, be aware that if you are planning on replacing the windows, then the shutter frames may not survive that, and you might have to get them re-done.
One other thing to bear in mind is that the shutter frames need to be fixed back to something sturdy. That photo suggests that the dividers (mullions) between the windows are part of the window frames themselves, rather than brick or stone, and therefore a subframe may need to be built inside your windows.
Overall though, yes, that window will be more expensive than the figures I gave in the earlier post - it’s more of a lantern than a bay window.