You've entered your Moodle page for the first time, and managed to put a basic header image at the top of the course...
Now, what to do with all those blank unit/topic blocks?
There are plenty of ways you might go about utilising these topic blocks to organise, sequence and present your course content and activities. It depends a lot on the nature of the course and what is involved, but here are a couple of examples and options that might help you at the initial stage:
See this in larger/higher definition here
These examples are fairly basic for now, so don't be afraid to experiment and play around with how you utilise the unit/topic blocks.
Check out my Moodle Tutorials page for other demonstrations on what you can do with unit/topic blocks, like adding content and 'decorating' them to look more appealing on the course page.