Adding patterns with images
First, I made two flower patterns.
With the [Darker pencil], I made a rabbit, cherry, and flower silhouette patterns.
These patterns were placed in the new “Pattern” layer.
I placed the patterns by copying and pasting from the “pattern” layer.
1. I placed the pattern layer above the clothes layer.
2. While selecting the pattern layer, I clicked [Edit] →[Transform] →[Free Transform] and adjusted the angle and size to make it look more natural. I also adjusted its position. The pattern doesn’t need to fit inside the clothes.
3. Once the shape is set, I either click [OK] in the dialog box or [Confirm current transformation] icon in the [Tool Property] palette. (The pattern’s colors are temporary)
4. If the pattern is overlapping in the same color, I select and delete the protruding part with the [Auto Select] tool → [Selection for referred layers].
* I will deal with the colors that overlap outside the different colors later.
5. I added the other patterns.
As the number of layers increase along with the patterns, I select and merge all the pattern layers by right click →[Combine Selected Layer] once I’m done.
6. For the overlapping patterns, I select [Clip at Layer Below] on the pattern layer.
I did the same for two other flower patterns.
 Adding hand-painted patterns
I drew the collar pattern with the [Rough pencil].
Doing the same for other parts, I finished adding patterns.
 Color adjustments
I changed the pattern’s color to better match the clothes.
After locking the pattern layers’ transparent pixels, I painted with the [Pencil] tool.
I added a color gradient to the kimono with [Blend] →[Blur].
A matching gradient is added to the pattern as well.
I repeated this process and changed the entire color of the image. The colors are either picked from the image itself, or selected to match the base colors I set in the beginning.
I added hand-drawn patterns to the rabbits.
I used the [Decoration] tool →[Ruled line] →[Dotted line] and [Dashed line].
The clothes’ pattern is complete.
The layers currently look like this.