Go to a stylist and ask them for a uniform layered cut. Then have them side sweep the bangs to your left (it looks like you like to do them that way). Should look a lil like this:
http://www.thehairstyler.com/hairstyles/alternative/medium/straight/Elon-Salon-Marietta-GA-USA-alternative-mediumBut due to your face shape, I'd be wary about adding too much volume, especially up top. The cut itself will not add volume, but stylists love to add it to hair now n days.
As far as color, I'd either darken it so that its less of a dull brown, or put some very contrasting highlights in it. Almost a golden highlight, but if you're gonna go with a highlight, don't overdo it!
EDIT: Btw, this is a fairly difficult cut to get just right, so don't just get ur neighbor to do it!