Because of the current bob length, theres nothing much you can really do to it to make it look different other than cutting it a lot shorter. I would recommend just a trim to let out grow out a little bit rather than to shorten it. Trimming your hair frequently (every 4-6wks) helps promote speedy hair growthBecause of your face shape, I would suggest going for a more grown out length style. Ashley's hair is a perfect choppy layered grown out bob perfect for yuo while you transition into longer hair.

You could go a bit shorter, or add in a Fringe or go for a blunter cut and layers to add volume

try 1 of these

I think you should try one of the new longer bobs. It's a great look for Summer.