Canvases made with decoupage technique and glue gun (TUTORIAL)

I made these canvases using decoupage technique, glue gun and acrylic colors. 

 This is how I made them:

1.  I carefully picked napkins that match.

2.  I marked lines

3.  I used a glue gun to make 3D effect on the lines.

4.  I applied the napkins on the canvas using a decoupage lacquer.

5. At the end I painted the space between the napkins.