I tried the Aeon Flow Closed and sent it back after listening for a few days since the cup depth wasn't enough for my ears, then I got the Ether Flow Closed 1.1 instead which had enough depth. The Ether was my work pair until I got properly fitting jh13s.
The Ether has more bass capability, the Aeon hardly seemed to output any bass at all regardless of EQ. The Ether also has more natural sounding treble and mids compared to the Aeon which seemed to have some kind of "thock" like feeling on notes that I haven't heard anywhere else.
Compared to neutral I'd say the Ether is a bit on the bright side and the Aeon is brighter still.