nah, mate. You're not invisible, you're just new to the site. Things are like this when you're a newbie. I gotta tell you to keep up posting your art. That's how the bot notices your existence and gives you the opportunity to reach out to more people.
I gotta say that I have seen your first piece of drawing and it is quite good. I highly suggest you to keep going doing what you are doing.
And yes, interacting is actually quite fun and helpful on this site. You'll always meet someone neat and sometimes you'll make friends that'll actually recommend you new stuff to try out and do on your works.
well. this has been meuny.
beanvamp
try the forums