Good job so far. I have played a fair amount of maps and built 4 maps. This looks like it's going to be good map. Hope you get the storyline or whatever your using to put a purpose in the map well thought out!
The funny rating is there for a reason. Yes it does, you are learning skills that will stick with you.
Like everyone else said, I think it needs to be bigger and more detailed but I think it's going to turn into a fantastic map! Good luck