Floor Plan ideas and suggestions

I'm going to add interior walls to the main living space of my home. It is currently an open concept without any walls separating the spaces; living, dining, and kitchen. It's loud, echoey, and there's no privacy!

The attached image is what I've come up with so far. The walls in the center is what would be added to the space. All the openings on the perimeter, kitchen, windows etc will remain the same. I used a free online program and not all the distances are on there, but it is accurate and to scale.

I don't want to completely close of the spaces. I'm hoping to keep a somewhat open, breezy feeling, just don't want hear or see everything that is going on around me at all times.

Any ideas or suggestions are greatly appreciated!