Meh, they look fine, but not as good as Flareon, Vaporeon, Jolteon, Espeon or Umbreon. Besides, Eevee didn´t, doesn´t and won´t need more Evolutions.
-3 are OK, there are many Pokémon with 3 Evos (Poliwag, for example)
-5 are a lot
-7 are a f*cking lot.
No more Eeveelutions please!