For a first shoulder mount I don't think you could go wrong with one of McKenzie's "HD" regular semi-sneak forms.
The upper right one in the picture is an HD with what looks to be a shoulder offset as well with ears back.

WIthout complicating things duplicating that mount would be a sure fire mount you'd be happy with........that frickin rack would help too. LOL but that's really a classic "appropriate" pose and like I said one that would be hard to go wrong with.
I bet the vast majority of taxidermists would recommend something very similar if they had to choose a forst mount for you.

Good luck in any event, I know the first one is one you don't want to mess up with a bad choice![:-]