now, with slightly less eye raping transparency

Looking pretty good, actually.

His near arm was short. Elbows are level with the waistline when the arms are hanging freely.
You had some weird perspective making Medic's face look flat, which in turn made him look Asian. Remember, there is foreshortening on faces, too.
The hands look pretty good for hands floating around by themselves, but I really can't speak for how well they're interacting with the thingamabob he's holding onto, because the thingamabob in question isn't finished enough for me be able to figure out its shape. Once you finish up shading the thingamabob, you might want to run it through Workshop again to see what we think then.

You're actually doing pretty good with the fabric. You just need to be a little more careful about identifying sources of pressure on the fabric, such as the stiffness of the class patch, the pull of the buttonholes against the buttons, or his medipack straps pressing against his body and pinning down the coat. Just little things like that make the difference between fabric that "doesn't look wrong," and fabric that "looks perfect."

Your colour will look a lot better once you get some big old, shamelessly blue-tinted shadows onto Medic's skin and shirt. I think you'll get even more stunning results if you take the hue contrast in your lighting even further, making the highlights even more red-white, and the shadows even more blue.