One of you guys needs to write a tutorial.
Because creating AI images is a combination of your thoughts and asst. prompts , it's kinda of hard to write a tutorial on How To as for example that " Ghost - Like Indian Chief Image above would use different thoughts .. .......... ( wording ) and prompts than say a Waterfall Landscape .... So what I did was to check out AI Art and opinion is that Midjourney is considered the best Quality AI program .
So my best advise is to 1st get a Midjourney monthly subscription which includes unlimited image creations, and if you get the yearly plan that brings the monthly cost way down .
Now with unlimited image creation you can go to work as much time as you want to give it .
Now how to get started , what I did was to go right to Youtube and look for tutorials and found many for Midjourney .
This link will get you started https://www.youtube.com/results?search_query=midjourney+ai+tutorials
Now after a little time doing this you'll be familiar with the workings of Midjourney , then you can ask me more about the How To , and as we talk you'll have a better concept of the things I will be talking about .
So as mentioned before you will need to set up a Discord Account to use Midjourney and when you do that you need to set up a private channel in Discord so all your work will be there just your work to view and work on . If you try to work in the Public sections your work will be mixed in with many others and that makes very hard to find and work on your stuff.
Since you have a good understanding of art and designing you will catch onto AI creating soon, still like all these Art programs there is a learning curve ...
Let me know if this was a helpful reply to your Question.
What was mentioned above applies to all who are interested in creating AI Art .
If your into AI creating and Making Videos check out this Link for Runway , excellent program https://runwayml.com/?utm_source=RunwayEmail&utm_medium=Email&utm_campaign=Welcome