Here's some general screenshots to represent playtesting sessions!
I was starting from the beginning and going to the end, editing along the way. But now, RPG Maker VX Ace has decided not to bother updating my playtest file to reflect my changes and I don't know what I am doing wrong. So I'm taking a break, will try playtesting again later in the evening with a new save file to see if that's what was causing the trouble (and if not, well I'll figure something out). Then one more playtesting session tomorrow morning, and I will export it and upload it and all that!