Creating complex custom shape

Start by creating a circle using elliptical shape tool. (figure 1.1)

Figure 1.1

Enable "exclude overlapping shape areas" at the top bar. (figure 1.2)

Figure 1.2

Create an ellipse using elliptical shape tool.  (figure 1.3)

Figure 1.3

Press Ctrl+J to duplicate the layer. Press Ctrl+T and rotate 30°. (figure 1.4)

Figure 1.4

Keep pressing Ctrl+J and then Shift+Ctrl+T to create multiple duplicates of the same layer rotated by equal degrees.
(figure 1.5)

Figure 1.5

Using path selection tool, select all the paths. Press Ctrl+C and Ctrl+V to copy paste the path. With "exclude overlapping shape areas" enabled at the top bar press Ctrl+T and scale up. (figure 1.6)

Figure 1.6

Figure 1.7

Using path selection tool, select all the paths. Press Ctrl+C and Ctrl+V to copy paste the path. With "exclude overlapping shape areas" enabled at the top bar press Ctrl+T and scale down a bit. (figure 1.8)

Figure 1.8

Figure 1.9

Using path selection tool, select all the paths. Press Ctrl+C and Ctrl+V to copy paste the path. With "exclude overlapping shape areas" enabled at the top bar press Ctrl+T and scale up significantly. (figure 1.10)

Figure 1.10

Figure 1.11

From edit menu select define custom shape. (figure 1.12)

Figure 1.12

Assign a name to the new shape. (figure 1.13)

Figure 1.13

This shape will appear in custom shape fly-out. (figure 1.14)

Figure 1.14

Now you can use this shape whenever you want without going through all the steps time and again. Just create a new file. Fill with a solid black color. Take orange as a foreground color. Select custom shape tool. From the preset shape fly-out at the top bar select "Tile_Pattern" shape and draw on your canvas. (figure 1.15)

Figure 1.15