These official Stardew Valley stickers were designed by—please be patient, it's a long list—Tony Kuchar, Ian Wilding, Chihiro Sakaida, Audrey Waner, Yesica Furrow, Nina Matsumoto, Jon Kay, Amanda Johnson, Kaori Takizawa, Laura Verdin, and Kari Fry. 

They're spread across two sheets; each sheet measures about 6x8 inches.