What is a voxel? Think of it as a volumetric pixel.

The magical purplefruit tree... with varying stages of ripeness.

I've played around with some free voxel software lately called MagicaVoxel. Here's some random silly designs, including the isometric renders I made using its handy export features.

The cycle of the Maple tree - Isometric rendering of a series of voxels

Some random conifers as well.

All images in this post are realeased under a CC0 use as you please license.