From looking at your first picture, it looks like there is no definite break between the two rooms. In that case, I personally think it would flow better with all the walls the same color. If you wanted to have two different colors, you might could add a short wall to the left of your entry mirror. Putting a short wall between what I assume is a window and that mirror would create enough break between the two rooms to paint them different colors. Others will probably have better suggestions. This is just my first thought.

Thank you! I am definitely leaning towards painting it all the same color but I wanted to give the dining room it's own definition with that. Do any of you think if I painted it all the same color and then with the 3 walls in the dining I took a stencil and painted over that color with a high gloss just to break up the walls without making it overly dramatic? Does that make sense?

I think that would work fine!