#49 is looking cleaner and more glossy. I'm still not sure that the logo represents, but I really like your style. If you have some more relevant concepts, I'd like to see your style applied to them.
#51 is simple, which isn't bad. However, we want to avoid using the text as part of the logo. You can use "Surreal CMS" in your concepts, but please ensure that the logo makes sense by itself as well.