Dandelion as an energy source on a blue backgroundDandelion as an energy source on a blue background
The world of the future with a huge source of energyThe world of the future with a huge source of energy
A glass of wine on the background of a gray wall with a light sourceA glass of wine on the background of a gray wall with a light source
On the grass lies an open book, a source of knowledge. morning readingOn the grass lies an open book, a source of knowledge. Morning reading
Antique abstraction a tangle of metal pipes plates on a gray backgroundAntique abstraction a tangle of metal pipes plates on a gray background