That's a nice poster.The first thing I noticed was the irregular order of the images. It seemed weird that everything was spread out except Gomamon's evolution line which was not only all in one place but also in perfect order... surely there would be other patterns hidden in the image, leading to something big and meaningful! Just think about what could be hidden here in plain sight... numbers or letters or maybe a sprite for a new Digimon, or something even more significant.There are of course multiple ways of grouping the images of which I have chosen the two most obvious ones. the first being of course to group the images by their characters. Taichi and his partner, Yamato and his partner, and so on.Then there is the type based grouping where we can group by images of Humans, images of baby Digimon then Child level, etc.So I immediately separated all the different images in Photoshop and regrouped them according the rules above:And the result is... no apparent pattern whatsoever. The shape for Tailmon and Hikari kind of looks like a shifty face though if you squint a bit.But maybe I haven't gone deep enough. Other methods of decoding could be tried, like grouping the Digimon by attribute, ordering the images by how much they show of a character's body, isolating patterns of characters that are shipped together or converting the position of the images for the specific characters into coordinates and then writing the coordinates on a piece of paper, feeding it through a shredder and then reassembling it in accordance with moon phases.Anyway, since I had the entire poster split apart and open in Photoshop I thought I might as well play around a bit and do an edit of poster where I color the characters' squares with the colors associated with their crests:The end result looks pretty garish so I completely understand why they went for they chose an uniform color scheme for this...If they are not even drawn in the tri art style, the likelihood of tri specific characters showing up is basically zero.