Let me introduce to you an modern artist who's major is Architecture made in his spear time he loves drawing with his little tools that everyone is going crazy about it.
Here are some of his recent drawings that he posts on his Instagram
Here is a little fastforward drawing he did in his spear time
Here you can see the full Video
Below you have some other drawing that are so amazing to see.
the skull is fantastic
Thank You Paulcolumbus follow me @liridonshala
You have some awesome paintings there love to share ideas.