Ha!
They look great, man. Good start.
We have beer (essential!), drums, cowbell (essential!), guitar, strings and the all-important popcorn-eating watching, but there's a handful of basic instrument groups missing - piano, electric keys, synth and brass / woodwinds (sax and trumpet alone might do it).
Also, it might be nice to have that classic all-in band-playing celebration, where a bunch of "musicians" are playing at the same time.
Just MHO, seeing as you asked...