It's much better, but some of your highlights don't make sense. A good example is the line coming off of the underarm of the horse's left 'arm' as it seems to cut through the shadows for no apparent reason.
Also, there are no highlights on the face, where the light appears to be coming from (according to the diagram beside it) and the legs also have no highlights. If the highlights are from sunlight reflected from the environment, they'd be many more places on the horse, even in tiny amounts. The hooves are flat too because there's no sense of light and shadow, and thus no form. You can use a single highlight for that, but you need something if you want to indicate 3d form.
Unrelated to your horse, but since you appear to like to draw 'cute' animals, I thought I might give you some tips:
I know I haven't mentioned it since my last edit, but your 'dog' above, just after my edit, still looks way too much like a fox. The eyes and size of the head are still waaay too huge for the style of dog you said you were going for (judging by the reference you posted). You really ought to do some work in regards to taking care of the size and placement of the eyes, as well as the size/shape of the head. These are very vital areas and really make your stuff either look correctly-drawn or grossly-distorted.
The size of the head relative to the overall body size, believe it or not, really characterizes a creature, human or otherwise, so it's important to nail this first and foremost. It determines its age and also gives a sense of whether it's realistic or stylized/childlike. Size of the eyes are actually third to that because the
placement of the eye is more important to determining what, and how "cute', they are than the size of the eye.
Not sure if you are familiar with Naruto, but the character Konohamaru has very small eyes, but his face works like a simple smiley-face with two dots for the eyes and a U shaped mouth, where the placement of the eyes in the center of a big moon-shaped face gives the illusion of 'cute' probably way more than that same smiley having instead large anime/chibi/etc. eyes on that same moon-shaped face. This principle is applicable to animals too, and you'd use it the same way for the most part. Unless done right, large eyes tend to make things look 'alien'. It's much easier to achieve 'cute' with more button-like eyes imo. The dog edit of mine shows this principle in action pretty well if you remove a pixel or two around the eye and make it more 'dot-like' for example.
