It's official: we've now had everything but the kitchen sink in this competition! The 'rain atmosphere' sample that this mix starts with is the first bit of proper Foley we've had so far, I think. I'd not be surprised if you'd been reading Mix Rescue, actually, because I use Foley stuff quite often for those mixes -- although rarely as prominently as you've done here. Still, I'd suggest rethinking this particular usage for two reasons. Firstly, it's very difficult to fade out of the rainstorm sample without feeling the loss of its natural acoustic signature. (This is why I rarely push ambient effects like this so upfront, and tend instead to use them in a subtler background role, so that they function almost like a sort of reverb.) And, secondly, I think that the fact that this particular sound effect has already been used to death in so many record/film/television productions means that it carries too much emotional baggage from cheesy 'C'-grade ballads and dreadful TV-movie weepies.
As such, I'd be worried that you'd fall at the first hurdle when it came to winning Young Griffo over to your vision for the song.
Overall tonality is in the right kind of ball-park, but I'd probably take out a couple of decibels at 350Hz and 3.5kHz, as well as boosting a similar amount around the 1kHz region. Mono-compatibility, on the other hand, is a big issue with the guitar in this mix, and I think it's because (as I mentioned in my last post to Paulo) you've panned the guitar multimics to opposite sides of the spectrum without sorting out their phase alignment. In mono both the main and secondary guitar phase-cancel fairly severely, and although the former comes out of it slightly better than the latter, it still takes a real dive in the mono balance compared with the stereo. The overheads don't fare much better either, so the cymbals suffer a lot of 'air' loss, and the backing vocals also appear to have been widened in a way which leaves them considerably dulled -- flip the mono switch in the outro in particular to hear all this in practice.
Once you factor out those particular issues, however, and look at the stereo presentation on its own terms, it's actually got a lot to recommend it. There's a good combination of clarity and balance, in particular, something which isn't easy to achieve, and I like the way the kick and bass-guitar interact. The lead vocals in general could probably have a bit more body to them in the 800Hz region, while the 12kHz region feels too crispy for me. My guess is that you're pushing this frequency with your EQ to try to give the vocals better clarity, but the reason they're not coming through is that the guitars and cymbals are strongly masking them an octave or two below this. It's only by dialling in some EQ cuts on those conflicting tracks that you'll be able to carve a space for the vocal to really pop through. (That said, a general increase in the vocal level of a decibel or so would also be within reason.) On a related note, the cymbals also seem to be strong in the 12kHz region, and are combining with the vocal sibilance in a slightly unattractive way, so either you should reassess that EQ decision, or look into putting a high-frequency dynamic EQ on the overheads tracks, triggered from the vocal sibilance. (Admittedly, the latter is usually a bit unwieldy to implement in most DAW systems.
I like the snare sound you've got, which has enough brightness, but also a nice weight to it, as well as a certain amount of sustain. The additional snare accents and reverb spins are also an interesting idea, although perhaps fractionally out-of-time on occasion. The toms feel rather low in the balance against the snare, which makes the fills feel a bit odd -- during the lead-in to the first chorus, for instance.
As I've already hinted, I like the way you use mix delay/reverb effects, which is both tasteful and responsive to the needs of the music. My only comment on that front really is that you could probably use more in the way of stereo quarter-note tempo delay to fill out the larger-scale textures a bit more.
So overall, I was actually surprised how much I liked this mix, given the eyebrow-raising opening gambit. Bar the mono-compatibility issues, most of my criticisms are pretty niggly, to be honest. Thanks for submitting the mix!