I’m currently working on just tweaking bits and pieces to hopefully get a more natural looking deer. I have as Johan said before rendered out a few custom color passes to have a grater control over the end result. It has been a bit tricky. but I think it looks better then before.
Now, i got i bit of trouble with a dark edge that is surrounding the deer. It gets a bit of a toon look. I will come back with a solution. I think it needs some kind of subtle light wrap. I will give it a try anyways.
Otherwise i have been trying to get the deer and the effects to blend more. This i managed by using edgeblur on the depth masks I put in earlier. The effects gets in around the deers neck now. wish i think looks better. Sample pictures below.