Hello again!
I read somewhere that the colors con the "scenery" (drop) must not be strong, or too colorful, because it takes the attention out of the puppet, or it is just diffcult to see the puppet. Well, on the puppets I am making, it is strong and contrasting colors. I come from the tropics, and colors is just a part of me. 
I am drawing the drops too, but I am thinking on painting them in one or two colors, with their shades. Like a black and white picture, but instead of gray shades, it will be a one (or two) color shade.

Any ideas or thoughts about this?
Thanks

Yes try to use muted tones which are subtle. This will nicely compliment your puppets, without taking away from the action. If the puppets are brightly dressed then this will be enough.

Cheers,
Dan

Thank you! I will see if I can paste here the background I am working with...

Here...

Looks good due to the fact it is versitile and can be used for mainly story lines. I can see how you have muted the tones on the right backdrop.

I would suggest painting on a fabric such as calico or if you need to see through it a scrim. This means the backdrop can be folded down ready for transportation.

Cheers,
Dan

To see through it?  I had not think on that! It is my first puppet theater... 
Is it a good advantage to see through it?
I intend to print out the drawing, on some kind of canvas (the material you see on banners on the streets).

I like your backdrop.  It looks very simple and attractive.  Very will done.

I wouldn't be afraid of using colors, even bright colors.  More important than color is the simplicity of the backdrop.  If it is very simple go ahead and use color it shouldn't compete too much with the puppets.  If it is more complicated you may want to mute the colors to reduce competition.

The drawings you posted are simple enough that I wouldn't worry about using color.

Yes, You can have the backdrop infront of your face and the puppets the other side. If you use a special material such as a scrim or aida fabric, you will need to `black out` the backstage by hanging a black/dark material at the back of the stage. The light shining on the puppets and on the front of the backdrop will mean you can see out, the audience cant see you.
This means you can see how your moving the puppets, the audiences reactions etc & is much more comfortable that having to do it over your head.

Cheers,
Dan

Thanks a lot for the idea!