These are definitely simply just unbelievable. The main two will work are very difficult to differentiate from a substantial-res Image. I might get rid of for rendering skill like that. Extraordinary work. I have looked meticulously at Silva's pics, and yes They're legit, ballpoint pen. Don't think me? Here https://emilianoimprd.activoblog.com/37211922/considerations-to-know-about-realistic-quill-pen-drawing