Well, well... my summer holidays are over! Unfortunately, I didn't have time to do as much art as I wanted, but at least I did some:

Here is my work in progress:
Squares / Quadrate

Material: Nail polish on paper (old book)

I also created some squares when I was on holiday. My daughter and me went to a creativity workshop for kids and we all ended up making squares:

 My son's square. He will be 3 in October.

 My daughter's square. She is 5 years old.
And the bottom two are mine!