What's the problem?
Nope. Now, it might leverage sexist elements of the surrounding society, but it's not sexist itself.
> Using your looks to attract visitors and earn more money?
It's certainly the case that the reason this works asymmetrically for women vs men is because of sexist attitudes about gender roles; exploiting knowledge of that isn't inherently sexist, though. It might be criticized for reinforcing and validating the existing norms (OTOH, to the extent that it is an exploit to overcome a block which then allows people to see non-sexual value offered by the women, it might actually be undermining the norm rather than reinforcing it.)
> Where are the angry feminists now?
Mostly, worrying about sexism rather than women doing what they can to survive in a sexist world.