Editing my film

Editing my film has been quite a long process. I decided I'd make it hard for myself and try and make my film in black and white with colour highlights. I spent a good few lessons trying to get this to work, however, I never succeeded. So I decided to just make my film in black and white. I did do some with colour highlights but I used a colour matte which got rid of any a certain colour, however, this did not work as well as I had hoped. As seen below.

The first clip I tried to do this with was just the flowers. I selected the colour I want to exclude and replace another with but as the flowers were all different shades I couldn't do this. I tried again with the shot from behind of Alex's back and him walking through the door, when I tried the colour matte on this shot part of the house started to go red as it was the same shade as the flowers. My last attempt was on the shot of Vicki blowing out the match then smiling, again I faced the problem of different shades of red. Her lips, even though were the same colour to the eye, in Adobe were different shades of red depending on the lighting. This led to part of her lips being one colour and her hands also being said colour when I didn't want her hands to be that colour. It all became too confusing for words! Long story short I ended up just making the whole film in black and white.