This one has been cooking up for a while. I think I've worked on it at least 5 or 6 times with some months apart each for the past 1y and a half. Not sure if that's a good thing or a bad thing, but I think the outcome ended up far better with each time I worked on it.
There's a few things I still would like to change, but it's starting to become one of those situations where I could be doing something with far better quality already, so I'm deciding to call it done.
It was a cool and crazy process starting with 3D Block-in in 3DS Max, ending up in Blender almost a year later due to new studies and then designing it on Photoshop from time to time. Will definitely use this process again, but probably from start to finish.