Bob, This isn't a sales pitch, but you could really benefit from my Custom Rifles In B&W book. There are numerous pics of my interpretation of the Winchester grip on 1885's from different angles. I try to replicate the grip on the original HW stock because it is near perfection to my eye. It has a pronounced dome. Did you add an ebony insert?
Your .22 is a beautiful rifle. The grip looks a might cramped front to back.
The first grip I shaped in this manner was in 1977 at Trinidad State working entirely from a 4" profile engraving of a Special Sporting Rifle in the 188? Winchester Highly Finished Arms Catalog reprint.
The project rifle was a 45-70 Falling Block Works that I built for my Dad. My brother now has it now and I'm glad none of you can see it. I did do a pretty fair with the grip profile.
My workshop associate Dan Kleber and I have just begun a Low Wall .22K Hornet in this Special Sporting Rifle style.