Ray, as far as I know, all D15s / 16s / 17s, pretty much the same guitar... all hog, all arch-back.
The D16 is a high-gloss version of a D15, but never seen a 16 in anything other
than the same brown that appears in the photo I linked. Have seen D15s in various delicious shades, from
dark red to coffee brown to natural brown like the 16, seems like most 15s I've seen have
been a satin finish vs gloss.
The 17 I had was high gloss, almost a honey-amber color.
Had a fantasy of trying to collect as many shades of 15s / 16s / 17s as I could and then take an epic group photo,
but somehow got distracted by other guitars along the way... :love-struck: