I just got this red foot Friday and not sure about the sex longer tail than my girls and bigger concave but not a deep concave like a boy and it's 5 years old
I don't think it is a box nor girl....but my best guess would be boy
I don't know if it is the pic or not? But is your tortoise being treated for shell issues ? I may just not be seeing a good pic here but may be a touch of shell rot going on?????