You can make small books by binding together Zentangle tiles too!
With this one I was trying out the tangle "Surf's Up". It makes a nice frame.
I thought I'd experiment with two techniques called "transluZENce" and tranZENding.
It's a little harder than I thought. But worth trying. You can find detailed instructions for TransluZENce on "A Tangler's Mind" posted Nov 5, 2017.
Here is the example by Lynn Mead that I was looking at. She really nails it. I have a lot of work to do!
The tangle itself above is called "Membranart" (found on blog of Tomas Padros). The idea is to try to emulate a layer on the top of the work that looks like thin tissue paper (membrane).
A version of the other technique called TranZENding is shown on Maria and Rick's Kitchen Table Tangles video.
I wasn't too happy with my first try but I plan to hang in there and try again soon.