You like the word “like”. You use it 321 times in this novel. Similarly, you use “as if” 58x and “as though” 18x. My critique is your overuse of “like” in the creation and overuse of similes, (comparing one thing to another using like or as). I’d like you to search for every “like”, “as if”, and “as though” in this novel and see if it’s associated with a simile you can either eliminate or rewrite. I’m not asking you to eliminate all, but overuse lessens the impact of a good simile.

Your narrative perspective (point of view (POV)) changes throughout the novel. This makes sense for your story, as it’s told from various POVs. You’ve written Bruce as offering a first person (dog) POV. Make sure Bruce’s perspective is consistently written in the present tense. It helps create Bruce’s voice and perspective and it makes sense from a dog. You accomplish this in your first chapter, but starting with your second chapter and moving forward from there, you’re inconsistent, shifting from present to past tense for no reason. Fix this inconsistency throughout the novel.

Love this: you incorporate the senses into your writing well - here and elsewhere. I also like the way your description adds to the confusion/discomfort Bruce feels.

I’d like to see you remove the word “hate” from Bruce’s vocab throughout this book. I think it’s too strong a word for his character. Even changing this to “I do not like elevators” conveys your point but lets Bruce remain an elevated character - pun intended. In philosophical terms, Bruce is the Good, and the Good does not hate.