Here's the raw file for any of you who wants to rifle through the layers, get a peek of how I do things or come up with your own alts. Please enjoy! I'd appreciate not removing my watermark from the final image too. π
I tried to export it as a .psd but it was a disaster. It all boils down to me using entire folders as clipping layers - for instance, I would set an entire folder as [Add (Glow)/Linear Dodge (Add)] and clip it to the layer beneath as rim lighting, but Photoshop doesn't support clipping folders and renders it as a huge sorry mess.
I'd like to get this sorted out or at least understand photoshop's limitations so that I can adapt my workflow into a more photoshop-friendly structure, because at the end of the day .psd files are much more accessible than .clip files, but it might have to be a struggle for another day π΅