Faux gator/crock is my favorite tolex but I can't find the good stuff anywhere.
I like the kind with what they call the 'medallion' included in the skin pattern. The 'medallion' is a roundish plate on the back of the neck just behind the head that has like 4 to 7(?) raised bumps.
Faux gator/crock patterns are different, some are copies of the belly skin, some are the back and sides and some are the back and sides with the 'medallion'. I like those the best as they have more variation of pattern texture and shape.
The back skin, side skin, belly skin and tail skin are all different in texture and shape. If you look on line at gator shoes and jackets you can see how they use this detail.
Mesa has some amps with the 'medallion' gator skin that look great to me from pics on line but you have to see them in person to be sure.
I've spent
many, many hours searching on line for tolex/faux animal skin/grill cloth and have at least 50 different samples of faux gator/crock that I requested from different fabric store and tolex dealers and they all are terrible looking and/or to soft to use on an amp.

(I have well over 300(?) possible samples for amp coverings and over 100 grill cloth samples.)
Below, this is the pattern I like best as it has the medallion, back and side skin patterns.
The medallion is under the left side of the handle, by the right chassis strap and on the top of the left side center in the 2nd/bottom pic. Looking at the medallion it goes right into the back skin, which has high bumpy protrusions/armor like the medallion. The older the gator/crock gets the larger and more raised these armor bumps are. The medallion also gets larger and develops more armor bumps as the gator/crock gets older and grows larger. The top center section under the handle is the side skin.