I decided to analyse some of the more illustrative ones as I am personally more interested in those..
This poster uses a Monochromatic tones and tints of yellow to compose the entirety of the poster. I thought it was charming of them to deliberately stick to monochromatic yellows to reflect the theme of the event, to celebrate the Yellow faces aka the Asian people (according to google translation of the event). At the same time, the yellow acts as a brand for mrmustard studio as it can easily be associated with its namesake.
As for the illustration, the yellow wall creates an interesting diagonal yet symmetrical cut keeping the poster balanced overall. This line of division also makes the small and playful black lineart stands out in the center.
All the textual elements on the poster are all placed at the four edges, framing an imaginary margin.
All four textual elements are easily legible as yellow fonts are contrasted over the off-white background and vice versa. Our eyes go over first to the Event title : Hello!Yello! which is the largest amongst all of them. In addition, the slightly tilted angle and the availability of wide space around it easily grabs our attention. In addition, visual interest is created with the title being written in a causal handwritten type in yellow, as if promising that this exhibition will be fun and entertaining.
Then our eyes get drawn to the bottom left as we go along the sub-margin that frames the title, where the Studio and the dates are displayed, which are technically the two other important elements after the title. We then go to the text with the vertical alignment at the top right corner, and this orientation creates another form of visual interest. It then directs us along its own sub margin to the sponsors.
I think the overall simplistic style of illustration with the repetition of yellow aligns itself well with the message of this exhibition; to embrace the charms of fun yellow as a part of the Asian identity.
I think the most outstanding thing from this poster is how it manages to capture the important features of coding with its play on the visual combination of both the illustrations and the text, which takes up almost the whole center of the poster.
Firstly, the largest text for the title (HACKATHON) is placed interrupted into 4 lines with the white lines, but still forms the word when read conventionally from left to right, and top to bottom. This disconnected imagery reflects how codes make use of individual alphabets as a component to communicate its functions in data instead of using it for mere communication.
The imagery of the hands intertwined with the text also further reinforces how coding requires layers and layers of work in order to make it function. It also perhaps suggests having to think outside of the boundaries in order to make the coding work, suggesting that the event is bound to challenge you to think creatively.
The textual elements of the posters also frame themselves around the central imagery, creating an implied margin. The difference between the colours of the frames around the texts also separates each textual information from one another.
Again, the poster, only uses limited colour palettes, and uses the split complementary system to bring attention to the detached hands from the orange-yellow background, which creates an impression that coding can be fun and creative.
Here are the other posters that I found interesting: