This is Good good start.
Nice work so far.
You definitely have alot of the main basics down.
This sounds more, like the old school classical reggae.
That my parents would hear on the Radio,
back in the old old days!

Like something a
Rasta man on the streets of Jamaica would sing too.
(With lots of Puffy chimney smoke.) Lol!
Which means you are pretty close.
Note: In some reggae songs, there is a
reverbing fat sounding echoing, single piano key.
They used it alot in the late
80's and early 90's reggae!
To elaborate further, Check this song for reference.
https://www.youtube.com/watch?v=C1P1SdLeOWE
From
30 secs to
33 secs. You'll hear the echoing piano key.
It is played once in a while throughout the entire songtrack.
Forget the lyrics and listen to the music track.
This is one example.
Not all reggae songs, use this single key press sounding note though.
Note: Also, not all reggae music, sound exactly the same.
Some are slow and easy, like the one you made.
Others are faster and stylistic, like the one in the vid I posted.
Here's another Coolish classical one.
Older generation, Caribbean party people, loved this track!
It was very
Groovy as they would say.
https://www.youtube.com/watch?v=oin43JK-OZc
You'll hear all sorts of musical sounds, not heard in the first vid I posted.
But there are some melody, style and beat drum, similarities etc. to all of the different reggae music tracks.
There are so many styles of reggae music sounds, it's too much for my poor brain to fathom! GASP!! O.O