I wore this outfit for work and while you can wear it with flats, I also like dressing it up like I did here with some black block heel pumps. (melissaimbrogno.com)
I've linked a bunch of truly amazing printed block heel pumps at the bottom of this post too! (wishesandreality.com)
Add some on trend details with an exaggerated block heel pump in suede. (40plusstyle.com)