Things have definitely gotten more challenging as the week went on; I have been losing momentum, though I am still well ahead of the "required" daily wordcount thanks to the strong start. I had more things to do, and less ability to focus.
The first few items in my plot itinerary were easy, because they were mainly about introducing the characters, and I could pull from a lot of my background notes. Once they actually had to start interacting, I found myself moving more tentatively, feeling my way through their meetings. I'm trying to do a lot with conversation, and very little via character introspection, flashback, that sort of thing. The book is supposed to be, in part, a mystery, and part of that is the mysteries within each of the characters.
I have gotten up to the part where they get attacked by space pirates, a minor encounter with some enemy auxiliaries, but their first chance at a victory. Romantic tensions are emerging. After this, my notes become less certain, and I expect it to be a tough weekend.
I got my first "crit" on the novel. Somewhat mixed, but good to have problems identified.