Excellent first blog....wish my first was done that nicely!
I'd get rid of the site admin section...don't want to make it easy for idiots to go poking around trying to log-in to somewhere they don't belong.
I also wouldn't list my comments RSS feed. Adult blogs don't get enough comments for this to be of interest to anyone and someone might accidently subscribe to it instead of your blog and then never visit because it never gets updated.
I'd only list categories or tags not both. Oh...and I'd list tags. So if you want to keep the categories, leave them in the sidebar and add tags to the posts.
Finally, add those ugly chicklets that make subscribing to your blog easy for blog surfers. I use
this plugin because it also has all the social bookmarking sites included.