relationship between collage and drawing

My conclusion:

They both has great expression form, but for connect, collage work has very sharp relationship between two elements ( image or colour shape), even though it has a lot of colour shape, it is also very sharp to connect the image. But for drawing, the connect is very comfortable, because this element is effected by hand and pencil's type. 

     

Furthermore,  collage work can expresses the visual feeling very powerful, because at my idea, the material just black, white and grey. Even though it is the original element of drawing, but collage can creates the feeling better than drawing.

     

At this time, i have a question about original idea. for my project 2 process, or project 1 process, the material  are from books, newspapers or magazines. The process are cut the images,  and then gives a new way to expresses my idea. But the images is not my original idea, the image is from other author. So for the creativity, the drawing is better than collage.

    

For rapture, it is about the original idea and element of my picture. Also the colour shape is mixed together on collage work, by contrast the lines mix together on drawing work,  that is a way to express rapture of feeling. In addition, the rapture that i find the original element can be expressed by different ways. For classical drawing, i changed the expression form, give a new way to express the old object, feeling are rapture.