I would say #s 2 and 5 are rainbows. I'm not sure about 3 it's wings look a little dark but it maybe a rainbow. The rainbow mutation consists of four mutations put together. To be a true rainbow the mutations you need to have are blue series yellow face type two opaline clear wing. There can also be other mutations included but as long as you have those four mutations you have a true rainbow. I have a pair of rainbows on my website if you want to take a look at true rainbows.