I am learnig basics of mapping now, is this enough? 
Knowing that you don't ask seriously I still like to answer that for you - from a perspective of a guy with not too much experience (
) either.
Honestly to add some statics you don't need much knowledge. To get a nice mixture and doing the artwork job, you probably need quite some time.
If you need help with getting started, just come along in IRC. There are - if you put yourself enough effort in your learning progress - some people that will give you surely a hand. Sometimes you will feel that you can't do it - for other it is just a simple task. I still have this feeling quite often - even after a few months of learning.
To get back on topic: looking forward to the next steps, whatever they might be. I hope the quality meets the expectations and it leads to releasable work.
