Welcome!
Your best bet is to order a sample of what you want. Pictures just don't give you the real essence of either finish. IIRC, the cost of the sample will be applied to your purchase.
I did just that with a set of M3's in rosewood I got for my Dad. I couldn't decide on which color was closest to his office furniture so the nice folks at Axiom stained a panel with three different colors (rather than order 3 panels). Then I sprayed three different gloss levels to give a 3 x 3 pattern. From there we were able to pick the right color and gloss level - although my semi gloss was a little different than the actual Axiom finish. I posted a pic some time ago of the 3 x 3 panel and the colors were different on two different computers and nothing like the real specimen.
