this is Seph, for Seph's lookie and its gone all wrong.

dear me- what are those tumors coming from his body? legs? srs?
and how is he flying with so much bulk-weight? D:


Help me please D:

It's been a while since I drew horses, but I will surely give it a shot!

Here we go!
http://i48.tinypic.com/elelut.png

my redline was kind of hard to see, so I went over it with a burgundy-line! C:

Basically, I think your main problems were these two things:
1. Proportions. The legs and head of poor Seph are much to small for his body, and this is mainly what is making your drawing look 'overweight'. If the legs were longer, then the width would be fine, but because they aren't, it gives them the appearance of being short and stubby.
2. Weight. Even though the character is flying, he still has mass and weight. Right now, the angles of the legs and wings are a bit awkward, and this makes it difficult to 'believe' what you are seeing. If he were really up in the air, his legs would be tucked in, but not all the way, because he would probably be relaxing them slightly (after all, he's using wings, not legs, to propel himself!). Also, the place where his wings are attaching makes them look kind of pasted on top of the picture. I would move them up, and really let him extend those beauties!

There are some other, smaller things that I would like to point out as well:
-The front legs look like they are attached at different points on his body, as if one was further forward than the other
-The directionality of the mane is kind of unnatural, because if he was flying forwards, then the mane should be streaming backwards through the wind.
-This is just stylistic, but if I were you, I would switch the position of either the front or back legs, because right now he looks like he is pacing- an unusual gait for a horse (unless perhaps they are racing sulkies...)

It may help you to use a reference picture next time, and circles at the joints may be useful too.

I hope this can help
~M

Yeahh.. I'm no good with horses, but I hope this helps somewhat? xD
I think M beat me to pointing out most of the problems there, but I might add that I think you've got the back leg bending the wrong way there... Comes forward to the knee, then bends backwards~

Horses aren't really very chubby creatures.. they are a little thick in places like the neck, and they have quite round bellies, but the legs especially are quite long and spindly. The tops of the legs are much wider, but the lack of outlines of the legs on the body create the impression that his legs just get wider from where you have left them, which makes his thighs look a little chunkier than they should ^^' That combined with the rather small head and short legs might be where most of the problems are at?

I agree though, looking at pictures of horses really helps with anatomy & posing, they're quite tricky beasts to draw lol
Perhaps for poses like this, look for pictures of horses in mid jump or mid gallop?

Hope that was some help (:

thanks all :3