I always find it difficult to give comment on the mix.
It's so dependant from what
you want.
Often I'm not sure if the mix was intended the way it is.
One could say, that doesn't matter, you like it or not.
But that's not always true.
I could say, the drums sound far away, and aren't defined enough, but what if you say I've used an 25 years old toy machine, because I liked the stupid sound?
Then I could have missed a new trend

You understand?
On the other side, if you just wasn't able to create a real mix that sounds like your favorite records, then I could mention a few things, like the drum stuff.
Anyway, I would say, if you keep everything, then you still could try to blow up all the 'string' sounds, by adding a quality longtailed reverb (cut the highs drastically) combined with some long delay effect, and use a stereo widthener.
Get the whole mix through the great Optimaster compressor and, specificly, the Psy-Q. Or use identicals

That would not do more than enlarging the effect that these sounds seem to be after
