It's raised just the right amount. Too little and why bother, too much and it looks unnatural. Scale is irrelevant, as each piece is raised just the right amount for the size of the carving, which is far more important that a static measurement of how far it's raised. Found that one out early on in my embossing career. I figured more is better, but it turns out there are physical limitations to embossing leather. Especially the trade offs between the stretch of thinner leathers and the extended depth you can get with thicker leather.
This piece wont be colored, but grapes are easy. Peter gave me a class on this exact technique. Essentially, thinned spirit dyes in varying degrees of intensity. Looks difficult, but it's not.