About the poem: Interesting allusion, well written.
About what it's about: 1 - I wouldn't find it too thrilling to be in love with Freddie Mercury (R.I.P). , nor comparing the one I admire and am in love with with him.
2 - I do respect Faroch Bulsara's (or whatever Freddie Mercury's name is spelled) outstanding talent, but I think that a talented person - "a gothic angel sent straight from heavens" - is too unique to be compared to even the greatest of the greatest. Otherwise this Lucas guy will always have to stick to being second best as the highest of his highest. Don't you see you are kinda sentencing him to this in your poem, repeating, over and over, that he's "the next Freddie Mercury"? He will always be compared to Freddie and this will put limits on him!
3 - Lastly, in the picture kindly provided by you he looks more like Roxette's Per Gessle. That's the closest I can compare him with.... If he really needs to be compared.
P.S. I don't mean to be mean, just giving you some detailed critique...