First boss is a DPS check, since tanking it isn't hard, but you really need to kill bees asap. I tried to kill em asap, and first few tries were of no avail, until I realised that I should DOT bot bees first ( poison and windshot on bee #1. Same on bee #2 and continue normal rotation, finish other one off). This worked wonders and killed bees really fast. So you got to find a groove on how to kill those fast.
Second boss is a healer check, since everyone WILL get hit. The Aoe should always be evaded but most people get the "Stay out of orange area" idea.
Last boss is just learning patterns. Really easy, and to be honest, the only hard part should be the black boxes if you happen to miss one. And even then it is not wipe if you miss.