they look unnatural, as if they came from a difrent body and placed on this one.
2)you base looks fine, but the lineart messes everything up
what i noticed is that you arent folowing the base properally. in the drawing at the left the back looks flat bc ur base is to straight and unnatural. the pelivs and ribcage are alighned, when they have to to tilted up a bit. but since u made them straight the arm couldnt reach the box, so u extended the arm and leg
basiaclly, ur anatomy is improportionate and u need to think in 3d. the base also needs some work with being proportionate
1)the arms
they look unnatural, as if they came from a difrent body and placed on this one.
2)you base looks fine, but the lineart messes everything up
what i noticed is that you arent folowing the base properally. in the drawing at the left the back looks flat bc ur base is to straight and unnatural. the pelivs and ribcage are alighned, when they have to to tilted up a bit. but since u made them straight the arm couldnt reach the box, so u extended the arm and leg
basiaclly, ur anatomy is improportionate and u need to think in 3d. the base also needs some work with being proportionate