Firstly, welcome to the forum.
Can I ask; when you say, ‘rejected’, do you mean from a crowd-sourcing sites? If so, even if you get accepted, working in that way, is not exactly a sustainable way to build a career. You’ll always be bottom-feeding.
Learn the craft properly. Learn what logos really are – or should be. In and of themselves, they are pretty meaningless. They should be part of a unified, consistent branding strategy. As stand-alone items, they just become adornment.
Have you created these yourself from scratch? Have you used any stock imagery in them?
As B says, I’ve seen worse, but, they are what they are, but not the right way to go, to my mind – and in my experience. Your job as a designer is to communicate someone’s unique message, not to make pretty logos. You’ll need all the tools of the trade to be able to do that effectively.
Also, you won’t get many people championing crowd-sourcing site around these parts.
I am not saying this to dishearten or deflate you, but we see these sorts of things day in day out and those of us who do this for a living – and have done for a number of years – know the signs. It’s a path to remaining in the amateur, hobbyist market. If you did them yourself, you obviously have some ability. I’d always suggest going and getting yourself educated properly. That way you’ll learn how to build a solid career as a designer.