Before this gets out of hand, most people here have no college or apprentice training in logo and graphic design... they ask you to put something up and you gave it to them.
You want to learn but we need to know more about you... do you have ANY training or experience in graphic design?
Have you at least done some research on this business or googled logo design?
My first suggestion is: Google "logo design process" Most people here do not follow this process so you will already be one up on quite a few people here.
Start the process.. the thing I want to see is what logos do you like? Have you at least looked at logos that you are attracted to? 99% of the people on this site (and most designers in general) will admit designing for yourself is the most difficult. I don't have that problem myself. I have a little trick... if I designed for the fat, unkept slob that I am, the work would be depressing, no, I design for the Grand Poobah of the lodge, the Guru of Graphic Purity... King Chicken Wing! I get ideas up the wazoo if I think of myself as someone else... try it, it works.
One thing, if your mind frame is "This is not rocket science". Stop wasting peoples time, you will be gone in a few days to a few weeks like many others who have stopped by. If you want to put that printer to work, listen to people who are passionate about it.
I can't say much about your logos because I don't know what your thought process was. One technical thing that most will bring up is never use red on black the way you did, this is generally a true statement... there is a little rule breaking allowed but that is generally done when you know the rules. If you want, I can post books and sites that may help... your gonna have to ask... as you can tell, I have helped a few people before. 11 years of being online only a few did the work needed to learn so my new policy may change to having to at least do something for it.