I'm very happy you had so much fun with my mod Thanks for the compliment.
Yes, the credits can be quite disappointing. Right now, I'm still not very sure how I can add images and texts to the ending. Video was out of my range and I suck at drawing I suppose I can add a little bit of text to close the adventure.
I do have another mod I begun a few months ago, now that I'm more confident in creating scripts and assets... but Divinity: Original Sin 2 has been released since then, which definitely put me in pause with LOG2
As for the missing levels, I'm making a guess here.
Did you find the way to Blackwood?
Remember one note found in the Library? The vol. VI of the Tales of the Enchanted Lands is your hint
Or maybe you just forgot to jump into a couple of traps.