Feels like wireframe should be more timing and I think lores wireframe is the one that matters most in modeling demo reeels (hell hound especially- where loops go is important for rigging), would be nice to see traditional anatomy drawings/figure drawing if you have any- always valuable.
Do not push that much for effects (though the black splash is awsome!) it overpowers your main purpose of the demo reel. Allow more timing for default color of your models, and shortly show color solution (wireframe on default/gray) since you are aiming for modeling. You definitely need more pieces, but overall great work and texturing the guy is very nice!