I am glad that you liked it, stay tuned if you want to see greener pics and thank you for review :)
Honestly, my friend it always takes a bit slower than expected but the most important thing is just to start without thinking about results at the beginning, you are right slowly but surely mother nature will regulate all things for you, don't worry. For that rust problem, I would try garlic and nettle mixture, if that doesn't work my second solution would be lactobacillus serum which should layer lives with lactobacillus that can be beneficial for two things:

• enabling greater nutrient uptake
• covering the surface of lives with beneficial lactobacillus and in that way preventing other bacteria or fungi (apple rust) to live there.
• If that doesn't help try Bordeaux mixture which is part limestone part copper but for that, you will need to google :)