Main coursework - Photo editing

I didnt know whether or not to edit my photo's so i did a few few things on photoshop to what looked best. I removed the background and change it to the same colour as my magazine page to make it blend in and see what looked better. I used Adobe photoshop to do this.Then I used the magnetic lassoo tool to detect the edge of the photos. I then copied the cutout of my characters onto a new document. I then filled in the background with the colour that was going to match the background of my page. I didnt really do much editing which any of my other pictures.