I agree with @EllenQueen01 , I think unless it was founded by a lesbian, and the picrew is made by a lesbian then it's not okay. As someone who's within the LGBTQIA+ community I believe that this would only be acceptable under extremely specific circumstances.
Yeah I amn't sure if the creator themselves were a lesbian or not but I did find it kinda rude to just make being a women who likes other women (or nonbinary individuals) an asthetic. I, myself, am within the LGBT+ community as panromantic+ace, so I amn't really a lesbian, but this just didn't feel right
If you think that's bad, lesbiancore technically exists on this website but is called Sapphic-core. It's a cottagecore, greek renaissance wannabe in my own taste. (Check All pages if you don't believe me if they haven't deleted it yet.)
But I did discover this page on this wiki abput this "sapphic-core" that seems VERY unprofessional (I don't really write pages because I'm afraid I'll screw up but this seemed less like a report you'de need to write in an exam and more of something you'de find in some fanfic.)