What you see here, is a rock painted with Acrylic paints. The picture resembles a little bird with cute expressions. Rock is a substrate that is easily available in most parts.

Acrylic paints can adhere well onto cleaned rock surfaces. Innocence, scenery, comic characters, objects can be painted. Sometimes, I prefer images selected specific to the shapes of the medium-sized rocks, so that it looks appropriate, without any adjustments needed to be made. That makes it Natural.