There's currently a
Overview of Signature Campaigns Thread which always being updated.
Unfortunately for you, There's only 2 campaigns (777coin and Bitvest) that accepts newbies. It's much better for you to wait for your rank to go up (at least jr. member) then join.
My suggestion: If you want to Join a high paying campaigns in the future, you should post high quality posts so you'll get accepted immediately.
Thank you... Would like to post a question... How do a post calculated as a quality one? what are the scenarios ?
And, lets say, if i am a sr member and posting few quality posts, then will i be auto requested from any campaigns? I will be more happy at that because it reduces some time in approaching them...
There is basically zero chance for you(or any body) to be invited in to campaign. Think of it as a task/job you applying, some may reject you some will accept. Like in real world.
Looking on your current post I think you are on a good path.
Stay on subject, use as good language as you can, don't make, so called "oneliners" and you are good.
Good thing is also not to ask to many simple questions for which answers you can find yourself.
Both campaigns will give you 4500 satoshi per post. 20posts are required as minimum.
Consider Zebpay they also accept newbies with 5Ksatoshi per post.