(Oh, @ joyrobinson, I'm very sorry for the late response, this time of summer vacation makes itself felt )
I made this drawing in one day. I do not always get to do it much faster, because I have a lot of distracted by different household duties. But , if nothing prevents me, it usually takes about 3-4 hours. Thank you for Your attention to my drawings and I wish You a pleasant weekend :))
RE: Waves, rocks and a lonely lighthouse