Is my crowding mild or moderate? Length of Invisalign treatment? (Photo)

I've been thinking about getting Invisalign for a while, but as I get closer to 30, the idea of having a lengthy treatment (over a year) seems unappealing. Of course, I'd plan to get evaluated by an orthodontist with full dental scans and an in-person consultation--but in the meantime, I was just wondering if the experts here could tell me if my tooth crowding is mild or moderate? What approximate treatment time can I expect? Thank you! (I Included super awkward mouth pictures!)