As always I want to thank @juliakponsford and @vachemorte for doing this post possible. All the credit goes for them. 

LET'S BEGIN 

I started my collage/drawing by making an ALIEN surrounded by stuff that gives hallucinations. I started by making some drawings of "drugs" (if you want to say it like that). Some mushrooms, marihuana, etc. I felt that this was a good topic for this.

Here you can see some of the drawings that I made: 

Then after doing this, I started making the ALIEN face.

I started by making the eyes in a shape of oval. Here you can see how I did it. 

PD: I made all the drawings in a piece of paper and then I cut them all and paint them. To later paste them in a black cardboard. 

This was a little hard to make. The face of the ALIEN was really hard for me because it has a strange shape, and making this was hard. I finally got to do it and this was the result:

 I painted the face of the ALIEN gray:

 PD: I was going to do it green but I felt that gray was good. 

Then what I do was put the eyes on the ALIEN face and put the face in the black cardboard: 

And the final picture of my collage/drawing was this: 

PD: I made some colored lines to give the cardboard a feeling of a background. 

 Thanks for doing this contest, and again thanks to @juliakponsford and @vachemorte for doing this. 

If you want to, you can give me an upvote and resteem.