Great job! I really like the weekly update, pretty much sums up all the cool stuff that happened that week. There is a lot of stuff you guys did, and it really helps the artists grow and connect with each other, kudos!
Not sure about all the social media, especially pinterest or tumblr, but I guess just try it out first for maybe 2-3 months, and if it doesn’t work just drop it and focus on a few channels that bring good engagement.