I thought it might be interesting to record the process, plus it will help me to have something to refer back to when I make the second one.
The armature was the first step. I used 14 gauge aluminum wire except for the toes which are 22 gauge cloth covered florist wire. Then the whole got a covering of pipe cleaners to help the wool stick.
The antlers were a challenge because I felt I needed something thicker than the double strand of twisted rusted wire that I've been using for the smaller reindeer. So, as I formed each of the two antlers, I added a second strand of rusted wire and worked the two as one. It was difficult, but I was pleased with the result. When adding the coat of Diamond Glaze I couldn't resist adding a dusting of micro glitter.