So let me ask you something here: what sort of artistic style are you aiming for? Are you trying to be photorealistic? Are you trying to aim for a comic book style? That will inform you and us towards what we should critique.
The next question I have is a bit more technical. What tools are you using in your workflow? I saw you mentioned MakeHuman, but I'm curious what you are modeling this in, what are you texturing it with, and what you are rendering this in. Anything else you used would be very helpful as well.
Without those answered I can still provide some critique. Honestly, don't beat yourself up too much here. I have no idea what your skill level/experience is, but I think you have solid geometry for this character. The forms are clean and it's pretty evident what they are meant to represent. So that is a great start.
1 hour ago, G-Dot said:
I've tried to achieve a look of painted metal, but my friend said that model looks like toy. And I agree with him, but this is not the critical thing, I'm not satisfied with shapes.
So it looks like you aren't a fan of the texturing and it I'm going to infer that you are aiming for a more photorealistic look (please do let me know what you're aiming for though). I absolutely agree with @Pepsidog: the problem is with the textures you've used for the model. Right now, the textures aren't coming off as very painted, but rather as plastic looking. The first reason for this is the glossy look of it. Without knowing what texturing tool you're using, it's tough to say which settings you'd need to adjust. You are trying to achieve the look of painted metal. Can you post some pictures as to what you are trying to achieve? Good reference pictures will help you and us with our critique. Painted metal is very much of a layered texture. You have a metallic base, and on top of that, you have the actual paint, which is itself another texture. What texturing tool are you using?
My other critique is of your emissive textures: they aren't coming off as very real. It looks very cartoony, contributing to the whole "toy" look. This may partially be because your rendering engine doesn't support good emissive textures. I know Unity isn't easy to get the emissive to look right. It's not casting any light on anything else on the mesh so my guess is that your engine isn't superb at this. I am not very experience with using a game engine to achieve emissive effects, so maybe someone else here can help you. Another thing is that if you want them to 'glow', then you need to ensure that the center is brighter than the edges, to make it look like there's a source that is 'glowing'.
Finally, a more generic critique is that the textures are too 'clean'. There's no dust, wear, anything on this model. Even the most finely and newly factory built goods will have some sort of variation in specular roughness, dust, etc. This is also contributing to the toy look. You need more wear and variation on it, since nothing in real life is this clean.
Is this glossy paint? If not, then I'd also add that if you're doing a 'painted' texture, then this advice applies doubly so: paint is usually never applied this cleanly nor uniformly to the sort of parts you are applying them to. Paint always is very 'rough', with all sorts of surface irregularities that are never uniform. Even in the case of 'glossy' paint, you still need some wear and what not. This highly depends on what you are aiming for though, and this is where a picture would really help.
In general though, I'm curious what the specific pieces are supposed to look like. What materials are they made of? If you can answer those questions, it'll help us critique.
If you can answer my questions though, I can give you some more specific advice as well.
