At Barogream located in Sangsu-dong, you can find reasonably priced small sized art works. With each of the paintings and illustrations created by around 40 local artists (professionals as well as amateurs) telling a unique or witty story of its own, it's fun to look around and spend some time here.
The reason why this place is called Barogream (which roughly translates as "immediate drawing") is because anyone can submit a piece to sell here—"anyone should be able to make, share and buy art" the philosophy of Lee Hong-jin, the founder of this shop. While it's an extremely small space, Barogream showcases around 2000 pieces of works. They're all in a high quality, and can be simply framed with paper frames which come in 15 different colors (they're light yet quite durable).