Shnek shading challenge

This week's shading challenge is focusing on Shnek, a tangle originally deconstructed by Hanny Nura (step out here). I had tried Shnek a little while ago and had not felt the groove of it, but this time I was determined to figure it out.

Learn how to shade Zentangle® with Eni Oken • enioken.com

Here is the line-art of the piece:

And here is the final shaded version:

Notice how the shading is done in layers, or groupings: there are distinct islands of shnek (that sounded weird, lol), each one with their unique characteristics, and the shadows separate each area from the next.

Here's another one from the final tile:

I really like the different pen widths!

Tangles: Shnek, Hollibaugh and Crescent Moon, also some echo lines (not a tangle, it's a visual depth enhancer).