Why do you call it computer created, when you wrote the software? You’re giving away credit that is entirely yours, to a tool that doesn’t make any art without you. Your computer didn’t decide to make pictures of procedural gas giants, right? It doesn’t even pick the good ones from the boring ones. That’s all you.
You picked the subject matter and setup the camera and shading. You designed the software UI. You decided what level of control you wanted, and you can add more control if you want. I understand you’re using procedural rules and randomness, but that was your intention, and so the story that you don’t have control and don’t know what it’ll look like when run seems to me contrived at some level.
One of my main digital art projects centers on artificial evolution, which is notoriously difficult to control; I am deeply, intimately familiar with what you’re talking about, and I still say emphatically the computer is not the artist, I am, especially when I write the software. In a digital art project, the software is part of the art. You’re framing your control in terms of what happens only between starting up the software you wrote and getting one output image, but for some reason leaving out all the control and intention you exercised writing the software and deciding what kind of procedural pictures you wanted.
There’s a whole category of art called “generative art” that isn’t about computers specifically, but started long before computers existed, and is about setting up and releasing a system of rules, whether physical or logical. Generative art relies on some level of randomness, and the resulting artifact is rarely predictable. And yet, it is still deterministic. The rules might be complex, but the only intention comes from the humans involved who establish the rules, and then let them execute, and hold up the output as art.
Noticing the machine does the labor isn’t very relevant, IMO. Cars do a ton of complex work while driving with only vague directions, but we don’t anthropomorphize them, not seriously anyway. Knitting machines do all the complex work making clothes, but clothing designers don’t talk about collaboration with the machine, nor give design credit to the machine. Printers and copiers are very complex, but nobody waxes philosophical about them being collaborators. Just because an image might come out different every time a program runs that was designed to produce a different image every time it runs doesn’t make the machine an artist, it only shows that the computer is a useful, powerful, and reliable machine.