The Wheel of Time on Amazon Prime Video released character posters from the main cast.

You can scroll through the posters below, and click on them to enlarge: 

The official account shared downloadable high resolution versions of the posters on Twitter. From these downloaded files, Twitter user @lynx_time discovered that there was a hidden layer which contained an overlay of weaves for each of the posters.

Other Twitter users then pointed out that the weave posters fit together to form a pattern.

Collection of the seven character posters for the wheel of time main cast: Moiraine, Lan, Nynaeve, Rand, Egwene, Perrin and Mat

According to the official show account on Twitter, these posters were designed by Studio Ronin.

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I am a long-time fantasy fan. Also a technology generalist with a knack for research. A mix of Brown, Blue, and Yellow Ajah.