Adding Colour

I am going to change the colour of the rose from its original colour of pink to blue. To do this I first need to add a new blank layer over the top of the image so as I can paint on to that and not the original image.

Here you can see I have 2 layers, the blank one is over the top of the image.

Im choosing to first desaturate the image so it will show up a better colour. Also, the background will be greyscale with no colour.

Here is the desaturated image.

I then choose the paintbrush tool with the colour in the small box at the bottom. 

After painting over the rose on the top layer this is what I'm left with. 

To get the image to look like a rose again we need to overlay the layers, which is done by clicking on the layers box and choosing 'overlay'.

This is the image that we are left with afterwards.