Nature in detail. Anything from animals to insects, flora, fauna, textures or abstract patterns to name but a few.
What you can do indoors you can practice outdoors. You just have to take a stroll in the park or through the woods & try to observe, analyze everything you see & I guarantee that every one of you will find a wealth of interesting subject matter be it recognizable or more extract.
The Nile with it’s 6671 Kilometer Length is the longest river on earth. The Amazon on the other hand had to do with second place with „just” 6438 Kilometers. An impressive world record is held by the south American Strom with the unbelievable mass of water that it transports: When it flows into the ocean on the Brazilian Atlantic coast a staggering 209.000 cubic meters of Water flows per Second. It is no wonder that the tropical rain forest basin of the Amazon is one of the wettest regions of the world.