This overtop with wing sleeves combines two ways using short-rows.
To obtain shape and patterning you have to work shortrows within shortrows. One part of the shortrows forms the regular shape, the other builds the organically formed segments.
I used three colors of markers and in addition three row counting threads.
This is not a pattern but a technique. If you want to learn it go to Heidrun’s Ravelry Swing-Knitting-Site where you can buy tutorials to learn and exercise and watch her site for live courses.

There is a distinction between free short-row-knitting and “guided” short-row-knitting. The tutorials will at first teach you to knit “guided” short rows which have calculated stanzas to avoid frustrating beginners.

Free short-rowing as worked in the overtop has its own rules. You don’t need a pattern because its on your own to create and calculate your project.
You cannot know how your project will look in row 68 i.e., but there are rules to know what to do in the special situation. A pattern for free short-rowing is theoretically possible but practically would have 100 or more pages, because every single row doesn’t look like the one before and every segment is different from each other. You won’t pay for it, I bet!
Advanced knitters of free swing-knitting techniques only need a few details to knit a similar project.

The different color fields are knit in a special algorithm. That means: the short rows are shortened in various intervals. Those intervals are combined in a numerical order. This order is determined by yourself before starting to knit and will never change until you finish your project. This will result in harmonic forms.

For knitting a project like this you should have advanced skills in shortrow-knitting as in free swing-knitting. It’s definitely not a beginner’s project.

My neighbor’s daughter had been so kind to model and her mother took the pictures. You can see that she uses her camera in another way than me