Sorry for the late response on this Mark or should I say @markmathewsmusic 
It’s been a bit hectic for me here in studio so finally got to sit down and have a proper listen to this today…but better late then never.
Anyway for one I would avoid using a De esser it can sound really nasty in folk music and squash sibilants that you need.
Instead on your DAW zoom in on the sibilants, highlight them and reduce their volume and hey presto no sibilants. it is quite time consuming but worth doing for a better overall vocals sound that you can then EQ or dynamically process with confidence.
Also I think you’ve used some auto tuning on this which can really make the sibilants nasty, distorted, and aggressive…on any ‘s’ and ‘t’ sounds remove the tuning if using Melodyne Vari-Audio or the like and it’ll instantly sound better.
You need to sort out your bass end a bit. I would suggest that you cut some bass frequencies on the bass guitar to get more clarity. Focus in on what frequencies are making your kick sound good and cut those frequencies on the bass guitar. You could also use a low shelf on a few instruments to help define the bass end of your mix a bit better…
In terms of panning I think you could be a bit more adventurous in some harder panning of some instruments to get more clarity out of the mix.
You could try having the instruments narrow in the verses (i.e to the center position) and then panning them wide (hard left and hard right) for the choruses which will have the added benefit of giving the choruses a boost. Remember though not to pan all the way to the right and left as the mixes won’t collapse down well to mono.
I would also suggest when introducing or removing elements (i.e. new instruments or vocals) you do so in pairs. A lot of people introduce or take away one element at a time when mixing but it’s better if you do it in groups of two. i.e. two new things get introduced on a chorus or 4 things get removed going into a verse. It will give your track better overall dynamics and make it feel more like something has happened when it has happened!
I think you could afford to bring up the side stick on the kit to give the track a little extra push at the end.
In terms of coalescing frequencies you have quite a lot going on in the mid range and low mids and you should look at what is really working frequency wise on each instrument…and then cutting those frequencies on other instruments, a bit of surgical eq’ing so to speak to bring out the best of each instrument. If you have been soloing tracks to eq them, don’t do this! as it could be where you have been falling down with your eq.
If you have been soloing to eq you should try to reset all your eq’s and attempt to use the volume faders first to find a space where all instruments sit. Then surgically eq as you go but don’t fall into the trap of soloing tracks to eq as you can get something to sound gorgeous and lush when solo’d only to find that it’s muddy and dense and doesn’t sit at all when brought back into the mix. It also tends to leave you with a bunch of coalescing frequencies where nothing has presence even though when solo’d they all appear to have.
I like some of the sound effects and pads you have got going on but whenever there are vocals I would take them out as they’re clouding the definition between the vocals and instrumentation.
I know all this may be a lot to digest and implement but you have a really strong track here with some great vocals/lyrics, lush harmonies, nice playing, interesting instrumentation and arrangement that’s getting let down a little by the mix.
TLDR Great Tune!
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