This tile uses tangle patterns that start with the letters I-E-M. Cheryl over at her blog has been challenging people to come up with tiles that use only tangles that start with specific letters. I like challenges because if you tell me to 'do anything' I will get lost thinking about what I want to do. Once you give me some parameters it's much easier to settle on something.
The tangles used here are;
I - Ixorus - Zentangle.com
M - Maroko - Helena
E - Eye test - Lizzie Mayne
I used tangle string #67 on TanglePatterns.com - That happens to be one that I contributed to that site. It's a string that uses a triangle, circle and a string.