And on that pic it's applied on a flame maple top, right? So canI conclude that it would look darker on a mahogany body?

^ Yeah, it's on a flame maple top. Walnut stain seems to vary quite a bit, here's another pic of it:

It seems to vary a lot! Thanks why I'm asking :-) Thanks for your input!

It varies among all wood working industries.

That is a sweet 7 string.

when i think walnut its more of that chocolate brown, not the first one.

Are you looking for a walnut stain or what walnut looks like when its cleared?

EDIT - As I reread your replies it would appear that your asking about walnut stains. Its going to vary by the amount of stain (how long it sits/soaks), and the wood its going on. Expect it to be brown to chocolate brown in color, and then your preference in shade if you so choose.

Have you ever seen the inside of a black walnut? It's much darker, and it's what Carvin walnut finishes also look like.
Black-Walnut-Juglans-nigra-J049483.jpg
walnut.jpg
2guitars-lb75w-1.jpg

pretty sure those carvins are just clear over Walnut wood, not dyed a walnut. Claro walnut is usually the darker stuff, its pretty and heavy. there were also the walnut SG of the mid/late 70's.

Yup

Claro isn't really the color, it's the pattern in the wood. Also called fiddleback, flame or tiger stripe...