Sorry - I am just getting the hang of this site. My comments about the half-circle and flop-eared dog refer to Entry #2.
For Entry #5, again, I like the half-circle idea, but paw prints are a little overused in the pet industry, so I would rather go with the outlines of the animals to stand out. I am going for a stylish and/or professional look rather than cute. But I appreciate you are trying out several concepts with the half-circle idea!