ATCs, and all the rest
I don't even know what a zentangle is, I'm guessing something to do with the line style. I like the top right one, the contrast between the curved and straight lines is nice.-iggygir;check out my blog
The top left (all pink) one and the bottom right (rainbow colored one) are not zentangles. Using stickers would probably make purists cringe, but the card on the bottom left has zentagles on it, imho. The black inkled one looks unfinished but is with zentangles. The hardest to tell for me is the bottom middle one with blue ink. Maybe it could be called a beginner's zentangle - it may have ben started by dividing the space up with "threads" on whatever word they are trying to copyright for that.