How to run a successful twitter for my art blog?

[angel]

I've recently started trying to start a written blog and video blog, but I'm a blimp on the social radar lol! It's an art blog with tutorials, my thoughts/perspectives on my artwork. I've started a blog, which has like four followers (it's on tumblr, but I'm going to make a wordpress account as well). I've made a twitter, but I have no clue how it works lol! Who do I want to follow to help promote my blog? (I don't really have friends on twitter). I've decided to post content once a week on all of the social networking sites. I draw a lot so I'll probably post artworks more often. I have about 6 weeks of real content/vlogs/written blogs already set up to get me started that I can distribute about once a week,
Trust me, I have no intention of being a spammer. I just am a bit overwhelmed as to where to start. And everyone says twitter is vital so I'm just trying to make a game plan for everything.