We have a wall in our den which is almost identical to yours, with three windows that are adjacent but separated. We gave each window its own shade rather than treating them as a single unit and are very happy with the look. Our style in that room is fairly rustic, western casual so the valance I'm putting up to cover the roller works/hardware is a cream muslin gathered like a cafe curtain. We have a fourth window on the adjacent wall that matches the others, so I treated it the same way.

One suggestion: Think about installing a remote control for the blinds. We did, and love it!. I didn't want to be fussing with rolling and unrolling four shades every day. It was pricey - $1500 - but worth every penny. Even DH appreciates it!

can you post a pic please? I can give each window it's own but not sure if to set into each "box" or bring it towards the front and side by side (which essentially would look like 3 blinds on one headrail).