As a background tune, this work certainly does a good job!
I honestly really liked the style you chose for this entry, as it can remind someone of the early years of videogames. I particularly like the use of instruments; they give an old, nostalgic feeling about advenruring into the unknown. I also like the overall tune of this music, as it is very catchy, and I think it can stay stuck in someone's head for quite some time.
However, I think it would have been better if, besides the main, there would have been a different composition along with it, as the tune can be seen as repetitive by some. Likewise, in this case, a shorter length would have been better; as the repetitive nature of the music can appear a bit tiresome. However, I stand by my earlier words; given that this entry is supposed to be an example of background music, I think that this piece of work accomplishes what it intends to do, and despite it's repetitive nature, it is a pleasure to listen to.
Overall, with some adjustments around the music running time, as well as it's main musical composition, this can be quite a treasure to listen to. I really like it still. And I think that with some more work, you can end up delivering a wonderful musical piece.