Have a look. Unfortunately your icon set for office violates the guideline at a couple of points ;( Those are the ones I have spotted right away:
- [Action is in top left corner]
- Use color to communicate meaning rather than for embellishment. It should highlight or emphasize an action, status, or an element that explicitly differentiates the mark.
- If possible, use only one additional color beyond gray. Limit additional colors to two at the most.
Even before I have seen those guidelines I had the impression, that your office icons are way too colorful. You use colors for decorating icons, not to distinguish actions.