Dank je, is acryl.

Thank you so much for your feedback. "You used the transparency of the acrylics very wel in those high lights".Do you mean that part of the water that waves over the sand? Or the high lights at the waves behind that? Next time I am going to use warm tones as well while painting scumbles. I am excited to find out how this will work out for me. Hopefully I will put them in the right places.

Wow, at first I thought you've posted 2 photos. I admire your talent and your patience as well.

Thank you for your kind and positive reply Sheryl!

@Stephen Winiecki thank you for your reply. You named exactly my doubt about the light. I painted this by watching a tutorial. The artist was at the beach, the light in the air was quite equal everywhere and so was her painting. Actually I just followed. A clear light point like the one in the enclosure is not that difficult, the more subtle ones on the other hand are quite next level but practice will bring me there.