Thank you very much for this EXCELLENT introduction to the rules. I will provide your blog entry as a reference whenever people ask me about a detailed first impression!
The new monsters and their bases in the Battlesworn Supplement are:
Giant Eel 40x40
Lake Beast 100x50
Water Elemental 50x50
Personally for my gaming purposes the Battlesworn expansion did not really tick any boxes. The focus on water-related battles just is not my cup of tea when talking about fantasy. The reused art was an annoyance but the writing is good!
However I think one of the main aims also was to get the concept of expansions "on the road" so to speak. Hopefully the future expansion will offer more for grumpy middle-aged game art aficionados and Tolkien fans like me