Here are some sketches I've done with micron pens and India ink.

 

When I was younger, I picked up a book from the town library that had a collection of drawings and woodcuts done by the 15th century artist Albrecht Dürer.

 

This book had many plants and animals that were drawn with astounding detail. I've been inspired every since. Here are a few examples of sketches I've done to emulate that style with subjects from the natural world.