The design is just the default WP design so nothing to comment on there.
Your post is fine. The point of blogging is to talk about what you feel like talking about. There is no right and wrong to blogging.
For some people blogging just isn't right for them.
I like your "idea tuesday" thing your starting. That may help you get people to your site. I find it a bad idea to be giving away all your ideas though :].