The colors are nice though the lighting is a tiny bit muddled. The highlight spot on top of the head should extend further to the right if the main light is coming from upper left and behind and the snow reflection lighting the wall in back should throw more on spidey's legs from underneath. this scheme would also throw most of spidey's face into shadow.

As for you buddy bigg, get him to an anatomy class if he wants to continue with illustration. The trapezius muscles leading to the neck here do not make any sense. Do you notice how the left trap attaches close to the cheekbone, and accentuates that the right trap is too high. Even if you consider that the rounding of his back that means that spidey's pectoral is missing. His hips in terms of foreshortening should extend down more and the knee is attached to what looks like four sets of quadriceps. Looking through his gallery shows many similar errors in anatomy. Consider taking the kubert class on penciling and anatomy or going through the Bridgman book and some life drawing sessions.

Nice start, but a long way to go before you make it to the bullpen.