Hi Stefano, I'm not into abstracts all that much, but the second image here, has caught my interest. I hope you don't mind that I have included a comparison image to better explain what I see. In the thumb picture it is more obvious than the larger image, but still somewhat noticable to a degree in the larger. In the thumb I see an image of a somewhat greek god with long hair. Like Hercules or Atlas. Sorry about the long babbling. It was an observation that I thought was interesting.
Take Care: Rich Z.