Nice map so far! I really like the cartoonish fonts, they help create a the feeling of a fun atmosphere. The map itself is clear, easy to read and functional as a device to find your way around the festival.
For the music stages, have you considered using different symbols for each type of music (e.g., sax for jazz, electric guitar for rock, banjo for americana, acoustic guitar for family, choir singer for gospel, congos for world?). Although you have quite a bit of white space that represents buildings, I think you could add a touch of color to them without detracting from the other symbols that represent event locations. Do the green areas actually represent grass or turf? I know that during festivals many people lounge around on grassy areas and having green areas on your map implies manicured lawns. It is clear to me that the dashed black line is the extent of the festival grounds, but for cartographically challenged people, it may not be apparent what it represents. Could you add it to the legend? Does the "information" icon location include lost and found? People always lose stuff at these things.
Thanks for sharing, it looks great!