Also keep in mind, lack of comments doesn't mean lack of interest. Many logs I've seen on other online communities relating to virtual pets require no comments, or comments are not allowed, to prevent going offtopic.
It's sometimes just nature that people don't comment to respect your log and keep it from leaning away from your quality. It would be like taking some grape juice and pouring glass upon glass of water in it. You keep doing that and the juice is no longer the same quality as it was. It's more water now...you know?
I suggest instead of focusing on comments and getting them, focus on doing your best for each log. You have great logs, but noone needs to tell you that