Hi Hena,
Regarding if your music is commercially viable: it is only commercially viable when it makes money. When you feel confident enough to begin engaging in business for your music, then go for it, do so with commitment and seriousness, but understand that not every commercial music cue is appealing to all--that's the nature of art. There may be someone out there that wants to pay for your music, you will only find them when you start selling.
Regarding your next step in artistic development: If you were my student the first thing I would suggest is your biggest crutch is that you are entirely too dependent upon copy and paste. You write music in a way that only makes sense in the computer realm. It is, after all, a lot easier to develop a music cue by copying and pasting the same 8 bars over and over again and then just adding or subtracting elements.
This makes your music highly predictable--maybe overly predictable. Drama is not predictable, drama is sometimes surprising, music can have gestures. Imagine if your music was a dancer. Your dancer would do the same movements for 8 bars and then do something new for 8 bars and so on and so forth. After a while, this dancer, even if their moves were pretty cool at first, would get boring.
Your crutch is repetition.
If you were my student, I would assign you a project wherein you had to write a music cue that had musical gesture. I would probably give you a film moment to score, something with changing action and changing pace. Something that would require you to write through with almost no large scale copying and pasting, something that would require you to actually open up the tempo track and edit it.
Good luck.