A major fashion rule I live by: the accessories make the look. You can have on an Oscar de la Renta gown but if your purse is plastic, you will look just as cheap.
It took me a while to grasp this concept, but do not buy 100 pairs of cheap shoes for the season; buy two nice pairs. You will end up spending just as much on ten pairs of shoes from Ross as two pairs from (insert favorite store here).
My first shoe purchase for spring was these black YSL gladiators.
As for this look, carry military green into spring with a surplus-style dress. The one I am wearing is from Max Azria and doubles as a cardigan; however, you can get the look with this Mink Pink SALE dress or this Club Monaco washed silk bomber.