Here is a piece I recently finished that I had been working on for a while. I really enjoy creating Celtic knotwork designs, but haven't done much in a while as I've been concentrating more on my straight up illustrations. I got an itch to get one going though this spring. I didn't know if it would really turn into anything but I'm really happy with how it came out. I'm going to use it as the new front page piece for my illustration portfolio.
For anyone interested, the actual size of this artwork is 5 1/2" x 7". I drew this by hand by first marking out measurements using rulers, compass, etc. I then divide up the larger pieces into more manageable shape sizes. I figure out the patterns I'm going to use and I draw them using a mechanical pencil that I periodically sharpen to a point by rubbing it on a scrap page of paper. I also use bits of tracing paper and graphite transfer the basic shape of repeating sections. The whole process is rather meditative but very enjoyable for me. Kind of like putting together a puzzle, if you enjoy that sort of thing.
This piece got kind of smudgy as I worked on it, so I also had to spend quite a bit of time doing clean-up on it in Photoshop. Oh, and I did the tree on a separate piece of paper and placed it in the center in Photoshop as well.