Here's something different I tried this week.
I started with random circles as guidelines and then filled them up with different designs.

Well, I don't know what this kind of drawing is called, so I'm just naming it as circular pattern design (since I drew circular repeated patterns in this) :P
If you know its name, let me know in the comments below.
[UPDATE] So it's mandala type drawing.

Pen used: Staedtler Pigment Liner 0.3mm

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