you have barely no shading whatosever everything looks plain. and the head looks way too busy in comparison to the rest of the textures
Ok let me tell you something, for the most part flyingmonk used copy paste, but he did it incredibly well, and he told me himself that he used both mouse, and pressure pad. I myself use both but I'm working on a set that's hand drawn with mouse. It's all about how much time, love, care, and effort you put into it.
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As for the set itself, I do like it and I think it is very good.
I commend you on your excellent mapping. Especially on the torso and thighs.
The design is well done, however the outline looks a bit choppy in places and the blue could use a bit of highlighting to compliment the lighter look of the rest of the set.
I agree with Cerberus that the head has a bit too much going on.
And on the note of shading and detail, i'm pretty sure Pate5 has a great tutorial lurking around somewhere and you'll find plenty more on google(or youtube) if you want to dabble into that.
Nice set, honestly I don't know why everyone is bitching and saying its bad. Even without joints it's pretty good. Could of used more shading so it looks more realistic. The hands look neat but they could look like robot fists. Overall it's great. Keep em coming!