Please don't let your first article being negatively received deter you from writing in the future. That is probably the last thing anyone on the site wants. Everyone writes things that are bad for whatever reason, even the senior staff and mods have had articles that they've either removed or reworked significantly from their initial state. The first article that I wrote wasn't very good, and I ended up removing it. But I've written one SCP article and two tales so far that have managed to stick to the site. Most people's first one is pretty bad, but the community is great at taking authors with ideas and potential and polishing and refining their writing skills.
I didn't see your first article so I can't speak for it's quality, but I like to think if you work at it and are open to constructive criticism, most people are able to become decent writers. I also know that some of the more recent articles have been pretty aggressively dismembered in the comments, but I hope that doesn't deter you. We want to help you improve your writing skills (even if we seem a bit harsh at times), and not only because the more writers of quality we have on the site the more writing of quality there is available for us to read.
Use the community. Use the forums, use the IRC, use the sandbox. Get feedback on your writing before you post it, listen to what people like and don't like about it. You don't need to try and change everything to please everyone, but learn to weigh your own feelings and judgment against those of others. Don't be afraid to rewrite. It is exceedingly difficult to get anything right on the first try, but it is immensely possible to turn something bad into something great with judicious editing.
So I hope you saved that article on your sandbox or something, because you might look back at it in a couple weeks or months and think "Of course! That will make this article so much better." And if not, it will be a good reminder when you look back on the things you've written to see your earlier stuff and how far you've come.
Tycho of Penny Arcade put it best, I think:
Every creative act is open war against The Way It Is. What you are saying when you make something is that the universe is not sufficient, and what it really needs is more you. And it does, actually; it does. Go look outside. You can’t tell me that we are done making the world.
So keep writing. Please.