I like your choice of light fixture for the dining area. But I'd pare down the tchotzkes on the walls and go for large pieces of framed art (or a grouping of smaller framed prints). Right now, the decor is a little cutesy, and I think you want to go more tailored and elegant.

Some ideas:

You can do more modern art, too. These just seem to go well with your look.

following

Try painting the one wall in breakfast area and hang a piece like this on your hook rack with a cool hat and plants or fun party decor. A few pics on a shelf will enhance the look you have going. Remove clock and green wreath thing.

In living room, put that crane on table on left on mantel and add pretty white orchid arrangement. Tack ribbons from under wood mantel in school colors for party look. These simple ideas are easy to implement and later more can be done. Make sure orchids are overlapping mirror on left and crane overlapping mirror on other side.

Opps