Wingerusa, I think there is some potential in your designs. However, I think the design you have seems a little dark, like for monsters, instead of sports like a mascot. Maybe you can change the eyes to more of a cartoon.
Also, I would straighten out the Bleachers Creatures so is more traditional. I do like the script with tail. Also, maybe that font in a pennant would work.
One last thing, maybe the cartoon eyes (see Phillie Phanatic but different colors) could be in the bleachers.
Thanks.