Nice build Soccerkid! I'm really liking your borders, just makes it so much crisper.
On the topic of the wall colouring, I don't think you necessarily have to add dark bley, tan or something else. I think it looks great here, same with SoT's builds. More texture definately helps, I mean your creations look a lot better since you've been using the log brick more. But I like this look, not everyone is going to like it, but you should stick with your style!