Looks like you're doing a good job of getting a handle on the program. I've used it a bit, but certainly wouldn't say I'm familiar with it. Sounds like you've dived into the annual styles, which is a great place to find some excellent map styles to work with. I look forward to seeing what you achieve with the 2007 style.

On your buildings, they're looking good. I'd suggest perhaps going for a nicer font for the numbering - that one's a bit harsh. Also, I don't quite understand the light grey outer glow on the walls. I'd suggest swapping that for a shadow and allow the grass to show through.

Otherwise, good start - and some great looking maps for your players!