RTF is a global modification that replaces all towns in the game.

Yes, the glow and light elementals are similar – you can decide for yourself, for example, you could remove the glow – after all, the city of elementals should primarily include the elementals that are canonical for Ashan, and not have half of them invented for Ashan (copied from the third game) – but that's just my opinion.
And at level 7, instead of a djinn, there could be a simurgh, for example – a phoenix is, after all, a living creature in Ashan's lore, not an elemental.