Okuyama Taiki is a Tokyo based, Japanese graphic designer and illustrator born in 1988. His designs are quite minimalist without ever looking boring. As he describes one of them: they are “fast and cheap graphics”.
In his tumblr Noichigo_source he lets all his “dirty contents” to be available in .psd or .ai format for people to “play freely“. (Creative Commons license (CC BY-SA)).
Via: Gurafiku
Okuyama Taiki does great work and I enjoy that you can download his source files and play with his designs.