Thanks for the feedback @uxamanda. For the tags, without the text input to add them directly, it's indeed not that intuitive. To make it clearer, for now I'll leave the "Add some tags" message even when there are tags.
I like your updated design as it cleans up the top toolbar, but I'm not certain we should put too many buttons at the bottom. It means you'd have to look up and down depending on what action you want to do, while if it's all in the same place it's easier to scan.
Yes, I didn't know what to do with that one and your design indeed looks better so I'll add this.