We'll give you all the crits you can handle... and then some. 

Anywho, this looks good. But a little bit more info on what you are trying to achieve would be nice. Seeing how this thing has no arms I can only assume it's not human, because if it is... oh boy.

Other than having no arms and the crotch area looking a bit odd, this looks pretty good. Good luck with it.

It is hard to see where you want to go with the picture.

What stands out for me is the lack of symmetry. If you have any training or have any information on guidelines and construction, then this is a good place to start.

I would suggest that if you are wanting to give the character a flexible spine similar to a snake, or lizard, let the shoulders and hips flow with the spine/tail. Without being able to draw up some examples it is very hard to show what I mean. If I could just upload pictures here, then I would be more willing to draw up examples (hint hint).

The tail lines do not flow into each other. Imagine the left centre appendage is invisible and mentally run the outline of the tail together. You have visible lumps along the tail.

Finally, it is seldom a good idea to face the character directly down the camera. This is your artistic decision, but this is one of the Disney "rules" I was taught back when I was getting my training.

Okay, it seems you've had some kind of professional training, but this is what I was able to grab from your crit:

-Angle the groin to the right more
-Remove some of the lines on the groin
-Change the tail to remove 'lumps'

I'll do all that once I get my other requests done, I'm pretty backed up right now. But I'll post them in this thread, possibly, and once I fix this guy up a bit more I'll post him.
If you need somewhere to upload, try Tinypic.com or xs.to.

Thanks for the help... even if I didn't understand most of it. I'm a pretty crappy traditional artist and have never taken a class, besides school or whatever.
but yeah, I took what of your advice was easiest to understand and fixed him up a bit.