UPDATE!

Still working on the first boss- it's probably the most technically advanced character that I've successfully animated. (The dragon boss from the end of the base game was more technically advanced, but I that design wasn't actually completely successful- if you look closely at the in-game spritesheet for that boss, the whole model isn't showing- I had to cut off parts of the model that glitched out.) The ground the creature's emerging from has a gradient "glowing" effect in some shots which was difficult to get right, and having all its legs move at once without crashing Blender also presents a challenge.

Here's an attack animation:

The creature can fire lasers from its mandibles that cause a great deal of damage to all your party members- better take it out before it does!

As always, more to come!