Cofty, you are so clever. From a one-celled organism to a human being, I call that improvement. What do you call it? The cancer ratio is now 1:4. We'll see whether it goes up. I say it goes up. What say you? Oh yes, you say No.
Let me answer for you. Through natural selection those that die of cancer will take themselves out of the equation. It'll be survival of the fittest. Those that survive will be an improvement of what went before. Their offspring will flourish. So, yes, your model predict improvement.
Let's be specific now. Remember the football analogy? Is the pot not calling the kettle black? Oh yes, and we're back to "claiming to be professional scientist." Really, it's like a stuck record. It's getting boring. How about a variation on the theme?
You know the problem with the evolution theory? It's based on a lie. The DNA of the organism determines the organism: dog DNA > dog, cat DNA > cat, frog DNA > frog, spider DNA > spider. Nothing more, nothing less. The organism has the ability to adapt, but not to change into a new organism. The latter falls squarely in the realms of evolution and Science Fiction.