Hi!
I am one minute in your piece and it is really cool sounding, but..well..I believeyou have a bit to relax. How to improve? Very simple here: You need to simplify your ideas and let them slowly develop and take your time..! I am in the first minute and while I think the first 14 seconds are really good (you said your motif once!), you then start to get probably biting your nails because you think your idea is too simple? So that ends up that you write all over the place with countrapunctual figures and no plan what you want there.(15-40 seconds). I have a general rule: Safe counterpoint and decorational elements for later and use it when your mainmotif is clear. The simpler the motif the earlier you can start with such things for sure. At 22 - 40 seconds..this is chaos there..please at 33 seconds..kick out this random Woodwind run..it is just hilarous.
Woodwind runs are used differently, I guess you want them as a dynamic support or as color for an accent? So when you use a WW run e.g a as color make sure to use such things where it makes sense. For instance for a build up to support the dynamics or if you have a melody and want to highlight a specific important note in the melody. Otherwise such runs become..just random and not supporting your music.
At 46 - 53 seconds..there is random chaos for me. If you can´t handle such things..stop doing it, first practise easier things and build on them and then you can go and try such things. It sounds for me that you can´t control that things yet. And that is no problem at all. It takes time and it is not easy to do.
I would recommend to you in general: Write a bit shorter pieces, lets say 1 1/2 minutes. Create a motif, say it twice. In the repetition try to do something different. Keep for instance the melody the same but use a different note in the chords, sometimes just one chord or notechange in the chord can have big impact. Create a proper b - section after that which features a new idea, but recapitulates elements from your a section, for instance a rhythm which stays the same, when the melody changes. Or a contrast in harmony...from major to more minor.(work with contrasts!) Or you could develop a b-section and counterpoint elements from your a section in the gaps where melody notes are resting.
So make a simple clear structure, like A (motif) / A (slight variation) / B (b-motif) / A (a-motif intensified,e.g. you can experiment going other places with your chordal structure or you extent the melody). You can if you like make little bridges between those sections so that they don´t sound like pop songwriting, so like:
-Intro (feature your motif incomplete, or use harmony to announce it..there are many ways)
-A Section
-B Section
-little buildup with cliffhanger
-A Section intensified.
-Climax section repeat motif (you can go here all over the place then)
What do you think?