I understand. you are very helpful. but I live a very shitty life which kind of drives all motivation out of my time and time again and then there is memory issue and I keep forgetting things(Not medical but just stress). But still, I will try to learn gimp, and let's see how far I can get. I had no idea about the intel denoiser. That's a very useful tool. Thanks for taking the time to both show small post-work on render and explaining the work behind it. I am grateful. Its morning where I live so I will work on GIMP tomorrow. I have been underestimating GIMP. Who needs photoshop. I just need some skills.
To me, a lot of people try to brute force the rendering engine into doing things they don't need it to do. It's a waste of resources.
(IMO, the render is only a first step towards art. I'm offended by people who think post-render work is bad for the hobby. IMO, post-work elevates the hobby and makes it better.)
I try to tell people to use free tools like GIMP because it's really powerful once you get it down.
If you're good at GIMP or Photoshop, you'll do better work than someone who only publishes straight renders.
Start with simple tasks. Learn how to give your image a "soft focus" look, like Penthouse magazine. That'll familiarize you with some of the GIMP/PS Filters and what the Light modes can do. (Any Photoshop tutorial online? It pretty much applies 100% to GIMP.)
Another idea is to try to make your image look like a painting. That also forces you to learn a few filters and how the layers work. Plenty of free online tutorials, and it gives you the basis to try things in GIMP.
Just look up Photoshop tutorials online, and try them in GIMP with your own images. You might amaze yourself.
