enver ending fade help!

So Iam trying to erase the fade of the first and last image that is drawn to
the render. I am not able to control that fade. it seems to happen when it
stays still or when it reacts with other colors from the other images that
are accumulated on the render.

I do not know if the lumakey object was the best option for me. It dies
accumulate each image that is drawn, so that is great! it is what I was
looking for, but the first image and the last one that are drawn continues
to fade and starts getting so pixelated that it ruins my piece!!

Please any help on this, I just one that to stop that from happening, the
images gets so ugly and dark.
Maybe I should erase the first one that is drawn? but people want to see
what they stamp, and I am limited by my begginner jitter knowledge.

here is part of the patch that has to do with this issue.

Also I do not know what I am doing wrong, but nobody ever reply to my
messages! I do not know if at this point is worth it for me to continue
writing to the list?

Is my english the problem?

Daniela
here is part of the patch that has to do with this, then there is the
subpatch for each image and a sample of an image

this is a part the general patch

the sub patch for each image