I think the melody sounds pretty classic and would fit well in a very old school rpg. Although, I think I should be honest and comment on your musicality and production quality. First thing, the melody you've made is good but too much of a good thing can be bad. I think you need to spice it up a little and add some variation. Maybe something simple like going up an octave for a little while would do the trick. It's a short song so it doesn't need to be overly complex. Secondly, all of the samples you've used are heavy on the low end, meaning more bass than treble, which is creating muddy sound. Drop the low end on a few samples, probably the 200 to 500 hertz range, and raise the high end on some of the samples as you see fit. I think you can make this song shine!