The trigger guard part looks very blocky. Also i think you should post a wireframe even if its unoptimised 1700 triangles seems very high perhaps we can help you lower it down. Other than that it looks good but i would also work on the bottom of the handle it looks weird.
ahh...easy man Leme show you. First, click the material editor and set the material to Ink N Paint from the material/map browser (from STANDARD). Now, under the word LIGHTED is the cartoon color, well choose whatever u like . Drag the goddamn color to ur object. Leme know if this isnt helping