Skeumorphic Design
I think the new design tries to incorporate too many skeumorphic attributes. Skeumorphic defined as un-natural flourishings added to a version of a product that were present in a state when these flourishings were necessary.
For one, in the payment dialog, the window is made much larger through the addition of the unnecessary credit card image on top. A smaller window would allow for users to see data beneath.
Flourishes like this are tasteless design and actually hamper usefulness.

I think we’ve largely addressed this issue. I can’t tell if we’ve actually completed this because it’s pretty general. If you have specific complaints, please let us know!
Marshall