A significant portion of the process for this animation involved adapting the original idea of the character being 'non-descript bipedal cat' into one that more closely resembled Tom. Trying to resemble the character/cartoons more closely meant reworking most of the existing animation poses to be on model, and a lot of iteration on the timing/energy for key moments.
That's pretty much my roundabout excuse for why this piece had to cook for (a little over) a year..