This is a very wonderful and lifelike piece in comparison to the original...ant that's saying something from me because I absolutly adore Miyosaki's work. you captured the girl's and totoro perfectly in both character's looks and personality in my opinion. The fur is very well done and well...all textured that I can see. Even the background is very detailed.
I only have a few minor things that I find a bit off. In this scene it's nighttime and here it's very bright for nighttime. Even in the day it usually isn't this bright while raining. Also, in comparison to the rest of the picture, his eyes seem a bit cartoonish/animelike rather than realistic and they stick out to me as a bit off. The claws are too, but not nearly as noticable. The leaf might be a bit too, because it has the comparison of the detailed background. Perhaps it's the color? it's a bit too vibrant for the lighting. The last thing is May's hand/arm seems a oddly bent for her being asleep or almost asleep.
Other than that, I absolutly adore this! I love the attention to detail and even the minor things such as the highlights in the water or the raindrops that bounce off the umbrella. Very nice job! Keep it up! ^^