As promised a comment on your art. I love your drawings triball! However, I would try to use multiple materials. I try work things out through adobe programs but also: pen, pencil, paint, paper mache, coal .. also try more colors for depth it's just a suggestion but keep it up! i like it:3
Great pattern the ink looks nice and thick. The design is great. The only advice I could give is try to perfect the lines on the outside and try not to make it bumpy, may seem minor but adds great effect.