I think there are still too many nodes/forums. Videos and photos you can be combined into one node and set prefixes for threads (video/photo).
Introductions can be a sticky in the The Lounge node.
Dog news, announcements, suggestions all these can be combined into one node set again with thread prefixes.
all the "Health, Food and Training" category can be combined into one node or two at most. Rescues, Fosters, Lost and Founds category same story.
I really don't think that a new forum should have more than 8-10 nodes at max. My board is about 4 years old, and I don't have more than 10 nodes, nor I plan to open more nodes anytime soon.
Too many nodes = boring/not active board. It may feel the need to be "organized", but it just damages forum owners. It's better to go the sticky/thread prefixes route at the beginning and then expend your board considering the activity (And users requests) in it.