It needs some work think
Give proper criticism by explaining what needs to be improved.
Although nothing you say will be constructive or helpful since you know nothing about 3D modeling.
That Samurai looks ok,
btw can you put skin to these?
Yes, that's called texturing, although the Samurai isn't showing any skin.
Btw, these screenies were taken to show the wireframe mesh, the actual model doesn't have the lines showing.