There's info about Wine tests and different photoshop versions, yell if you haven't seen them.
Last I checked, the version that you can subscribe to atm doesn't look like it's supported as well as older versions are via Wine.
If you need the latest Photoshop version: buy Windows for $ and dual boot into it whenever you need to make a quit edit on a picture, then boot back into Linux. Hopefully you're using a SSD or you can setup a virtual install of Windows (I've never done it in Linux)
There's a part in a Johnathan Blow (made Braid/the Witness) speech about Photoshop, he used that as an analagoy of what everybody else uses and industry standards may not be the best:
no joke