this sounds good. when he's "rapping" i think maybe a lo fi effect would work well and then once the chorus kicks in (and he starts singing) keep it as is. the whisper part i think is cool but maybe bring the levels down a bit to keep the rhythm of the song the focus of that portion. and maybe add an underlying lead guitar solo or lead something solo during the whisper part.
i'm not sure what the lyrics really refer to but there's something interesting about it. stones, cobble, rugby, lads, castle, dublin, gold i don't really know what Ireland looks like but this paints a good picture and music fits the vibe of what i imagine Ireland is like.
listened three times i liked it.