Do you know vectors? I'd suggest you use/create those to get a fine looking logo.

Regarding colors, I'd suggest you to hit up a color "hacking" website, ones that give you a color palette. The colors suggested by it go well with each other.

Will tell more after you're done implementing the above two suggestions. All the best.
Do ask if you've any questions.
Thanks for taking your time out for creating a logo for us again! :D