On the 16ct fabric I used, it's 35x25cm or 13.6" x 10"

Hard to pick a favourite. Maybe it was Maria Sibylla Merian who sailed to today's Suriname numerous times (a woman in the 16-17th century) to catalogue butterflies and popuralize the idea that metamorphosis among insects is a thing. Her illustrations are really aesthetic and revolutionary.

The tree I stitched in the end is also tied for the first place. It's called the dynamite tree. Its fruits explode when ripe with seeds flying with speeds up to 300km/h, it's covered in spikes, and it's sap is deadly poisonous.

Due to my occupation I was familiar with the plants in the "these plants can kill" section. The effects of their poisonous alkaloids are very common in pharmaceuticals, and are used to treat certain conditions but I've always found them really cool!