first off....im not fond of that first melody, but that could be just personal preference and whatever, but obviously you like it, so my suggestion to you is....
so you have this melody going from 1 - 32 right?
but it doesnt change a bit....so to keep it interesting....try adding a note to the melody 16 - 32
and to spice things up a lil more throw some small change right before the beginning of another measure...
make sure to balance the notes out though....you dont want to have this simple lil melody and then all of a sudden fucken bethoven...itll clash too much, so if you wanna do that work your way up to it, or do some super dramatic thing to compensate
Thanks for the feedback, some really useful stuff there.
Before I can comment any further do you mean the bass melody? If so, its a great suggestion as I am looking for a bit more depth in the beginning section. It's great to learn things with feedback on every track.