@vardermerwe: Yes, that's all that's needed. Some mapmakers have had trouble with their first attempt, but they were able to revise in response to the first few messages in their game threads, so don't worry overmuch about making mistakes.
@Pangaea: I certainly don't want it to end, but it can't depend on me to make maps reliably. I probably won't always be as busy as I've been lately, but there have certainly been a lot of incidents of me being late. Last year we had a lot of mapmakers, but the numbers have declined. Perhaps everyone shifted to Beyond Earth?