Opinions on black and white or coloured flashback scene and group 7's solution

I have asked a few teachers and they have all said that thy prefer the flashback scene to be in black and white as it separates the past from the present. 

I have also asked students on their opinion and the majority have said that black and white would be better as well.

However, the decision is amongst the group and since half of us wanted it to be in black and white and the other half preferred it in colour. Alisha came up with a fantastic idea to combine black and white with colour. 

Everyone in my group thought that it was visually successful and suited the flashback scene because now it appears to be more dream-like.