Experimentation is important and only change is constant. That said, change for the sake of change is a real problem and adding design trends and ego to the mix can make for a lot of waste and annoyance.
Otherwise minor nits...
> What is the "Archive" icon even supposed to depict? The lower part of a printer, with a sheet of paper sticking out?
Storage Box. Seems obvious to me, but reasonable that it wouldn't be obvious to everyone. I probably wouldn't get it without the text, but I also accept that some concepts don't transfer to iconography easily.
> "Sweep" is most likely a broom - but would you be able to determine that without the text?
I can't imagine what else that would be.