Advice on photoshop brush settings

If you don't have a Drawing Tablet that you can use Window>Brush Settings>Shape Dynamics>Size Jitter>Pen Pressure to vary the thickness/taper of the brush, then you can draw a path and use Stroke Path with Simulate Pen Pressure checked.

1. Use the Pen Tool set to Paths and draw out your path.

2. Select a brush from the Brushes panel

3. Go to Window>Brush Settings and under Shape Dynamics>Size Jitter set the Control to Pen Pressure

4. Right click on the path, click Stroke Path and select Brush with Simulate Pressure checked and click Ok

Like in this video

https://www.youtube.com/watch?v=pm3z6vk4qog&t=101s

Hi @Beatrice267075036zlm this page will give you step by step instructions on how to create similar brushes as your example shows:

https://helpx.adobe.com/photoshop/using/creating-modifying-brushes.html