just check out the horizontal lines in the model, it'd be better for them to flow with the angle of the body (e.g, especially in the leg) as it'll make the modelling easier to tweak. Try modelling the arms in the T position (outstretched) so its easier to rig it once complete.
I think lower poly is good (but may be wrong) because you can add more detail in once its all blocked out.

Good start though, keep it up