Hi there @returnnull
I don't find that track too much "dense" in terms of sounds, I could hear every instruments & they sit quite well together, it's more about the overall flow of the track & the arrangement IMO. It's a nice track but since you're bringing a lot of elements during the first bars it gets more difficult to keep it interesting & to surprise the listener. I know that you haven't mixed the track yet, but right now I find the drums taking over those nice synths sounds & some elements like that shakers loop at the beginning are very linear & since they are very synced on the beat & without variation, it's taking out some "live" & interest. We are very sensitive to anything hats, shakers and those higher frequencies when listening to music, so if those elements are quite prominent & very linear & repetitive it could make a track boring.
In general when asking yourself if you should add another element to the track the questions to ask are " is this really adding something to the track ? Does it make a real difference, is it an enhancement ? Does it create an interest ? ". That's for adding any "new" element, it's of course different when you're layering sounds together to enhance one instrument.
So nice sounds in there, they complement each other well but arrangement, progression, bringing variations to drums & melodies could really be beneficial to make it more interesting for the listener.
Hope this helps, cheers !