Hello, Potato Man! You expressed the design in a nice way with your drawing :) I am surprised by your design skills and drawing skills because you expressed the exact size of your shoes and the large flow of your clothes accurately!
To answer your question, I consider two points when I feel too much in my case.
First, which part should your eyes first touch? When I complete the picture, I set which part I want to show to people first. Then, the design of the parts except that part is relatively less complicated. If Potato Field wants to set eyes on the character's face and upper body first! If you think so, you should relax a little bit on the design of the lower body or shoe section, which is relatively far from that part. This is an example, so depending on your plan, the part where you relax might change, right?
Second, replace the line expression with color. It's a method that I often use. In the line phase, all wrinkles are expressed in lines, and in the coloration phase, some detailed wrinkles are erased and replaced with light light intensity. The lines of wrinkles that are crucial for expressing the flow of clothes are maintained and the small wrinkles are expressed only by coloring. Therefore, the second method can only be applied at the coloring stage. If you want to apply this method in the line-up stage, it would be good to remove small wrinkles little by little, leaving behind the most important wrinkles.
I hope your answer was helpful, and if you have any further questions, please feel free to ask :)