Those are nice pens. Great choice of color combinations! I am glad to see knots moving past B&W or bland two-tone. A few others have done colors very nicely, but I really like the color combos of yours.
Very nice. Took me a while to see how the second one was done. With the first one and different colours it was obvious but using all the same colour on the second it wasn't right away. Something else to try.