Bobbsy
Boring Old Git
Actually, that sounds very much what I'd expect from an SM57--not bad at all. (And I like your playing--you're good mate!). I think you might get a slight improvement in tone if you moved the mic slightly down the neck, i.e. a bit closer to the sound hole. As we've said before, around the 12th fret is the usual starting point.
My one concern is the level. The recording you sent is actually about the right level to aim for but you shouldn't really have to crank the interface to 100% to get it, especially at 8 inches distance. Perhaps you just have a quiet guitar or quiet style but, even with a 57 I'm not used to having to add that much gain (but I don't own a Focusrite so maybe that's normal? Over to Focusrite owners to express and opinion).
My one concern is the level. The recording you sent is actually about the right level to aim for but you shouldn't really have to crank the interface to 100% to get it, especially at 8 inches distance. Perhaps you just have a quiet guitar or quiet style but, even with a 57 I'm not used to having to add that much gain (but I don't own a Focusrite so maybe that's normal? Over to Focusrite owners to express and opinion).