I believe that tomboy isn't JUST the tanned skin, ripped abs, short hair, and wearing some sports bar w/ shorts.
The core essence of what makes tomboy great is just the physical but what's inside. The honest straightforwardness, the bro-like comfyness, and great personality/character.
While all tomboys are great. It's sad seeing casuals miss the true overall appeal of tomboy GFs just because they fetishize a very narrow set of traits/tropes.