tl;dr: There's some things I like here but design decision around it suck.
I think I have a soft spot for real porn games that don't shy away from delivering actual porn rather than stringing one scene out for far too long. The Porn Valley knows what it is, you get porn stars and you make em do porn. There is some management aspects and I think with some direction this game can be improved.
There's a lot that just sucks about the game. First big issue is no rollback. This is normally a fine decision for Ren'py games if done right, but there's a lot of areas where it's needed to prevent raging out. The only really good money maker early (and throughout the whole game really) is selling drugs, but this event comes with a chance to just end the game. Why not include rollback, if quick save and load is available? Why include the ending game thing at all? Failing to actually do a porn shoot is similar in this regard but more controllable.
Worse than this is the grind. It takes a while just to find a girl in the first place unless you're lucky. To get her to do a shoot, go grind some money giving out tours or sell drugs and hope you don't die. Once you finally do the scene you get a 30~ compilation of the porn shoot if you succeed. Then go do it again. The price to payout for the vids is ridiculous, at least early on. If a shoot costs 475 to do and gives you 1 buck a day, that's 475 days until it pays itself off. So back to farming tours and selling drugs. Click, click, click, click, quicksave, quickload, click, click x10 until the next shoot.
Why bother playing really? These are just the pornstars playing themselves. Besides an obvious AI written intro that doesn't make much sense and isn't expanded, there is little story to speak of. Once you realize this, you might as well just open up the pornstar's page on your favorite tube site and start scrolling.
There's a problem with this game that I don't know how to fix without a redesign. Grind is too rough and the premise can't carry it. Time will tell, I guess. UI is clean, at least.