Middle of the Work

Some times you will get to the middle of a work and think your almost finished only to realize you are only at the beginning of the middle. I assume it has to do with seeing the potential of what it is you are building.

But what if you can't see the potential because you don't know your own ability? Meaning you have never pushed yourself to a place in your work where you felt a sense of full accomplishment. Once again I am assuming you had to have attained the goal in order to know how to get there.

What if your finished stage is measured on the comparison of your work to your hero's or mentor's finished phase? Do you know how and why they finished there?

What if you don't know how to get to that finished phase you seek? What "mile markers" can you recognize that help you to realize you are in that finishing phase?

Maybe these ideas could help.
You could use your "Gut feeling" stage where you trust your instincts to tell you the work is complete and then compare it to your goal.

You could set up a sort of manufacturing system so that each phase of the work has a clearly defined and recognizable ending and finishing stage.

You could use a comparing system where you place your work side by side you goal. Then check the differences between your work and the target goal. Make tiny changes to tune you work until you recognize that your prefered finishing phase is complete.

You could set up a time limit so when your set time has been reached your project is finished. Each painting will get 4 hours of painting time then it is complete.

Congratulations if you found your answer, all of these techniques for finishing are legitimate and good.

For those still looking for a way to finish a work of art with their finest potential assured, realize there may not be a finished phase.
The art work itself is just a page in your life's experience, it is not a goal but an ever changing pictorial log entry.
I have to admit this solution is the hardest to accept .