It looks like you missed a quest, because there are 12 (ncluding the secret rooms) plus the main quest. If you had 1 - 10 then
you missed the one in Withyside.
By missing that one, you also reduced the bonus you get for prayers said for you and you don't get all the bonuses in the reward chest given to you at the end.
There are no skills after level 27, and only one at that level.
I used Eva in much the same way you did when I had her as warrior. I wrote the characters so that the one person people might dismiss as just a bit boring in fact was almost the most valuable to the team, and the one with the highest opinion of himself was a lot less so. I'm sure you've met people like that in real life!
I wonder if you got all the skills from the enemies - a couple of them are really quite strong. I'll have to look into that.
I saw your appreciative comment in 'Memories' about the NPC dialogues changing - thank you, it's a lot of work but worth it, imo. Even though I'm fairly sure that only a handful of players would go back to Clifton after arriving in Dorgate, those that do will find out who won the boat race, and what people thought of it.
I'm glad that overall you enjoyed it. Thank you for playing.