Nicest job on the line art, and more importantly, the dexterity of the brush, Aunt Herbert! (for your mangy mongrel)
Well, if I could suggest an improvement, then it would be that though your lines and dexterity have a consistency of exceptionality, that I'm just not getting enough exaggeration here in your animal drawing here. Would you please exaggerate and cartoon your animal painting in ink even most with 30 minutes of 20 second animal and canine warm-up sketches??? (1800/20=90 animals) The reason why you could and should do this suggestion for improvement is because, it can help you make your lines and dexterity less rigidest and the least sitffest, but the most fluidest, flowing, the even most organicest, loosest, cartoonist, and too expressive.
Good luck to you, and I hope you've found these completely and totally useful for your knowledge in the drawing fundamentals.