I will be changing drapes soon to lighter color

Perhaps we have some confusion with terms. There is nothing remotely mid century modern about this room. Perhaps MCM is not what you really want since none of the rooms in your dining ideabook are MCM either. Are you going for this:

Dining Room · More Info

Or this?

Honore-Transitional Dining Room · More Info

I like bottom one more

Was thinking of getting chandelier this style. What do you think?

Your rug really is too small. I'm not sure you can fit a properly sized one here though.

The first thing that came to mind for me was the light fixture. Do an online search for "modern pendants" and you will find something more MCM for the look you are after. Another great thing that is very mid century is to look for a brutalist sculpture for that darker accent wall. MCM hardware is often antique brass, so let that be your metal finish guide when looking for a sculpture. Or, you could find a couple of very large black and white framed prints for that wall. Then maybe go for color on the drapery--or a large colorful print--that would add a lot of spice and interest to the room.

This would be a more appropriate sized rug. You should be able to pull the chairs out without them falling off the edge.

The rug is 9x12

Is there a leaf in the table that you don't need? If so, maybe remove it.

What ever light fixture you select, do not block the view to the art on the walls.

Doesn't have to be this art, but I like the contrast of the white against your milk chocolate walls.

http://www.celadonart.com/black-balance-diptych-2

Love it

Oh, I am so pleased you think it has possibilities. I have to say that the dining room table and chairs, (those chairs a classic and one of my favorites, is just perfect for your space. And you selecting brown, which is not used too much right now, looks great together.