I've put together two types of feedback for you.
If you are a hobbyist
Nice job. Continue to have fun and learn more.
If you are trying to be a professional composer
I hope this is not a serious statement
You're not there yet. You still need to learn the basics of composing.
Your themes are rudimentary and, from there, don't really develop. Quite frankly, the pieces don't draw me in nor hold my attention. Don't worry about writing for orchestra yet. Can you write a piece for two or three instruments that has initial interest, continued development, a B section (at minimum) and an overall arc? Start there and branch out. Prepare to spend years practicing this.
You obviously have potential and a love for composing. Keep working at it and seek guidance from local schools if possible, engage with other composers, listen to more music, transcribe, study scores, take composition lessons, read books, etc.
Good luck and have fun!