It looks better than the first model I did! 
Now, about the Setup Machine…
What it does is create a skeletal rig to control the arms, legs, torso, and head (plus wings or tails if you want that). You will need to know how to assign the control points to the bones (which in AM is pretty easy to do), if you don’t know already.
Also, the Setup Machine has to be run on each character separately, unless you are going to create one model first, and then alter the first character to make the others. Since you’re modeling a Teenage Mutant Ninja Turtle, you could model the first turtle and just change the colors on the other turtles, and you’ll only have to rig once.
However, it doesn’t create controls for facial expressions, the eyes, and so on. Also, you should learn how to create “Smartskins” (which are deformations of the splines around joint areas, so that the joints look correct when they are bent). Or you should learn how to use “fan bones” to control the deformations. You can find this out from the Hash forum, or from various tutorials at the Animation:Master Resource Matrix (the ARM).
I guess what I’m trying to say is the Setup Machine is well worth the $90 - I know it is for me! But to get the best results from it, you need to learn some other techniques first. It’s probably not going to be as easy for a beginner, but it is much easier than trying to create a rig from scratch. Good luck!