The colour effect is an effecting way of using colour without dominating the photo; this technique is done in Photoshop you firstly create a new layer, then select soft light this is done so you can see through the colours and make it able to still see the picture, then select the brush tool and then a colour of your choice in this photo, red, blue and yellow have been used I then select sections to colour in one it is all done to merge the colours all together and make it blend in, to do this you go to filter blur Gaussian blur .