
Yoko Tanji is a Tokyo-based illustrator, and the artist for this lovely illustration created specifically for Sketchtravel’s San Francisco stay. Notice the the cable car in this detail! (The San Francisco skyline also appears in the full illustration.)
As you can also see in this detail from the Sketchtravel artwork, she loves cats, and they tend to find their way into many of her illustrations.
You can see galleries of her beautiful work (and follow her right here on Tumblr!) at tanji.jp.