Its OK. Has a nice ambient feel to it. Would be nice in a game. Now I don't know how much of this song was made using loops or samples as you used the LBP sequencer, but it was generally well composed (or arranged?). So 3 stars for that.
Only problem I have is that it sounds too generic. All I am hearing is preprogrammed loops, sounds and mixing settings that are not by you. You haven't seemed to have developed your unique style yet. Though I guess you're still a beginner.
Unless you're just doing this as a hobby, you really have to get a proper DAW someday to develop your unique style and produce better quality music. LBP's sequencer isn't going to allow you to find that unfortunately.