SFGate

grandmalucy12 I would put a long rod iron table with glass on top. Get a buffet lamp since you have a plug. Hang a picture or mirror not too high. Then you can put family pictures on table .

Merilyn Gear try a wall decal some of them look amazing. you can get black and white or coloured ones and they just stick on and pull of sort of like a clear vinyl finish so it is easy to remove if you are unhappy with it look up wall decals on google

oneofeleven Here are a few suggestions - a coffee bar http://pinterest.com/pin/234750199298904199/
or maybe a desk where you could pay bills or use your computer
how about a bookcase where you can keep your cook books and/or collectibles and if you don't collect anything , well now you have an excuse to start!

lastplace I like grandmalucy12's idea some others might be a large iron wall art to match your ceiling light, a very large wall canvas of something that makes you smile (you can buy these pretty cheap), create a wall of pictures all with similar or same frames with bright and colorful food or kitchen items, a wall of family photos, a beautiful tall thin plant and some crocks, decor alongside it, a large but thin bookcase that could hold cookbooks, kitchen decor, candles, kids books to read at the table, colorful plates etc etc etc
The one thing I don't think you should do with whatever you chose is to go to small, it will get lost and not make any statement at all.

Dearborn Cabinetry LLC Your room seems to have a country vibe. I would suggest a large vintage sign of some kind, with a vintage bench beneath with cushion seat in a fun fabric to bring some color, pattern and style into the room. You could also consider a console type cabinet, as i did here in my own eating area, with a vintage fabric above. the wall is large, so a huge vintage quilt would also work really well, hung as art. Have Fun!

wedgito sliding barn door that covers passage into entryway. almost never closed, but hangs out over the lonely wall
like this Fall 2012 Parade Home
or Kitchen
Dwellings

What's Inside Design Ltd. Since you have plenty of storage and are leaning towards the idea of art....I think a stone wall with a fireplace would be stunning!!! This is a popular look in a lot of restaurants. Of course, I'm not sure if that's practical where you live, but it's a beautiful look!!! I'll see if I can find you a picture.
Caroline :)

What's Inside Design Ltd. I found a couple examples of fireplaces in kitchens with stone walls:

desparza2010 http://www.hautelook.com/short/3KuAw
Something this this painted barn door would be cool. It would add a nice punch of color and definitely a cool factor!

What's Inside Design Ltd.

What's Inside Design Ltd. You may even have room for a small sitting area around the fireplace like in the above picture.
Whatever you decided to do, have fun with it and enjoy the process!
Caroline :)

Laura Christoffersen I think I would warm up the space by adding a couple of comfy chairs to sit in and drink coffee with a book shelf or something to put stuff on...