The Swoobat in particular is my favourite. You do excellent, eye-catching, simple-yet-brilliant logos.
Really, keep drawing! You do excellently and I'd love to see more!
My critiques on your art will be honest! I'm not mean about it- or at least I don't think I am- but I won't lie to you. As a result, I'll always hide-tag my critiques (don't be nervous because it's hidden!). My praise, however, is also honest, and I'll never give one without the other.