I love seeing colorful street art like this. I think it is especially cheery for a library. Love the community aspect of coming together to create it, as well. I'm not much of an artist myself, but I think your pig is fantastic. Definitely a good call on the color change. Always interesting to get a little of the local history along with the art, as well. Kind of makes me sad for the tigers even though I understand you don't want to live in a place where they might attack you.
There are a lot of nice walls to paint on in Seoul. It definitely helps make things look better, especially if they are carefully placed.
The story about the tigers is sad. They have an important part in Korean folklore and mythology.