n open sketchbook on a wooden surface

n open sketchbook on a wooden surface. On the left page of the sketchbook, there's a black ink bottle. Lying on top of the page is a blue pen with a swirling pattern and another blue pen. The right page features a drawing of a man with a topknot hairstyle and a beard, wearing clothing with blue and black shading. He holds a sword. The drawing is signed in the lower right corner. The image does not provide information to identify the location as Sofia, Bulgaria.