I think you have a lot of creative ideas here, some really gorgeous melodies and harmonies as well! But i am going to somewhat disagree with the comments saying that these feel to long, and instead say I think that something that would help make your writing even prettier would be to experiment with a bit more development when it comes to your ideas. By that i mean shifting around things like:
- what instruments are playing, and how many
- how loudly they are playing
- what new musical content they are introducing
I think your ideas again are so pretty, and this was such a relaxing entry that i enjoyed a ton! But by working on adding more variation on some of the ideas i mentioned above I think you kill two birds with one stone - you make your ideas more engaging so that people don't feel like the songs are too long, and we get to hear even more of your beautiful work!
Overall well done, very impressed with that fact that this was just done on bandlab. I dont know what your computer situation is, but as a novice like you mentioned try downloading Cakewalk by Bandlab! Its a more in depth software version of the online bandlab client, that will give you even more tools to expand on your ideas. The discord server for this also has a lot of extra free tools accessible that will help you learn! Good job, can't wait to see what you make in the future :D