I just did an inventory of my office as this question has me intrigued. Here is what I have in a 17’x30’ office with 9’ ceilings:
Pedestal mounts: buffalo & kudu
European mounts: 3 buffalo, 2 eland, wildebeest, bushbuck, warthog (tabletop)
Zebra rug
Elephant tusks on pedestals.
There is some artwork and African curios mixed in.
It’s totally a matter of personal taste, space and finances. For me this is the right balance.
Per my earlier comments, the buffalo and kudu are both exceptional trophies from outstanding hunts. I don’t anticipate that I will ever do another shoulder or pedestal mount of an African trophy.
My NA trophies are in my reloading room. There are 3 shoulder mounts: dall sheep, mule deer, pronghorn antelope. All are fantastic trophies from self guided hunts. There are a bunch or European mounts, bearskin rugs and bearskins (flatskins), bear skulls, etc..
If all my euro mounts were shoulder mounts there is no way I would have room for them all, and if I did find some way to squeeze them onto the walls it would not be to my taste at all.