Simple, sounds a bit like a beginner sequence.
At the moment I have this but I will be updating it. It doesn't sound bad at all (or so I think) and it's from c3 to c4.

edit: damn, I need to fix measure 47 since I went out of the octave and I didn't realize it, if there is a mod please I need permission to fix that.

If there is an issue with following the theme let me know
The octave is from C2-C4. Please tell me if this isn't inside of the two octave range.
Hopefully this is good? Octave range is C3 to C5
D5 -D7
(wip)
A very atmospheric, ethereal, and elegant sequence I present you guys. I had a bit of trouble working on the sequence due to it being worked on during the week of my finals. It's been a struggle to find the right amount of free time to work on the sequence especially when studying at the same time. Yeah, it's been a bit stressful.
Hope you enjoy it!
This contest is so competitive