above and beyond the fairness and racial issues...
i think im equally (or even more) concerned with the fact that they'd be using professional models as the figures.
"im sorry, sir, you're not tall or handsome enough to be a firefighter statue, so, we hired hans, here"
thats just silly.
if you're going to make the statue based on the picture, then make the statue based on the picture
if you want to make a seperate memorial or tribute, THEN feel free to add racial harmony and signing birds and beautiful people and all that. i really have no problem with that. but if the goal is to make an acurte representation of an existing photograph and/or moment in time... thats exactly what you should do.