Dining rooms for dummies

I think a project might do me some good.  My dining room is gross.  And by gross I mean not pleasant to dine in. 

I enjoy all of these.  I think I can swing them (ability-wise and money-wise).  They are all VERY neutral, this is because I am a little scared of color and it fits my house which is 1970's cool ranch.  I love mixing furniture styles and colors and I am especially in love with a table and chairs that do not match.

I save pictures from Realtor.com in my spare time. Most if not all are from there.  If not...sorry (said in this voice, here).