Okay, here's my honest advice. You're new to this. Your first few strips are just going to be you playing around with the system, seeing what you can do. We don't want to see these strips.
Once you've established what you can do with the site, you should then think in terms of funny. Read your strips over before hitting 'save'. If you're not happy with the strip, don't save it. There are too many crap strips out there.
And, before you go posting strips to the forums, think whether or not they're going to appeal to others. The folks here are a friendly bunch, and will give credit where credit's due, but if you ask what we think of a really bad strip, someone's going to dis it hard.