Hi GiantsGiants
I agree with Gustav.... Certainly length and make a smoother outro.. It could use some further melodic development.. When working on a song, especially if a different genre than I usually do.. I use one of the most valuable internet tools.. YouTube.. Search out other music, similar to what you are doing or what you want to do..
I write out very detailed analysis.. I use graph paper for each instrument, and have developed a kind of 'shorthand notation for it.. often using different colored felt tip pens, to notate, differences.. symbols, squiggly lines..
I draw each track out (as best as I can determine from listening.. how/when each instrument comes in, does it loop around?. are there variations in the loop.
This will give you a guide line for your own work.. You can use the outline you made from the studied piece, and substitute your own musical motifs, etc..
Take note of the different kinds of sounds used, how many are there.. analyze different pieces.. how long does it keep your interest..
There can be ambient music, which is quite fulfilling, then there can be what I call 'audio wall paper'.. and for some situations, 'audio wall paper does the job.. It is there, fulfills a certain need, but does not draw your attention away from other things. (visuals happening, a narrator, etc)..
AND you are off to a decent start... Start to be aware of 'patterns' in music.. rhythmical, sound families, certain types of pad sounds, percussion.
gentle orchestral percussion, can add a lot.. cymbal rolls, small exotic instruments, 4 bars on/off of a maraca, or seed gourd type instrument.. The possibilities are endless.
Happy hunting, and composing..