There isn't really any "getting better with practice" in this case, it's literally just taking a picture with your phone and uploading it. Phone pictures these days are ridiculously high res. We now know anyways that these are just screenshots or thumbnails and that the actual pictures are higher resolution.
most people seem to have been on that train, me too, im like hey, no pressure in making an OF, but if you made one now? ok im taking a look (for free, on leaking forums of course), but she seemed to have a lot of genuine fans who are just glad she willingly made it
HeyImBee_SFW seems to be posting a ton of the OF content so I image its from there. Kind of doesn't make any sense considering that its called SFW but I'm not here to judge
She said in a stream soon after her tweet that it was a joke and she didn't expect it to blow up as it did and for so many to believe it was real. No record though since she deletes her VODs, just gonna have to go on faith here.