[Help Creating a Macro and Then Batch Processing it or...??]

I am still having problems and I know it is my fault please help.  Here is exactly what I am recording as a macro:

1. I 'place' my chalkboard background
2. I 'place' my black line drawing (of a fish)
3. I 'invert' my black line drawing (and select layer 2 from the bottom)

This looks great and is what I want BUT when I batch with other black line drawings (cat, dog....) the result is exactly what I want but it just keeps grabbing the fish image.  It is like it doesn't know to grab the cat, dog...

 

Said another way when the macro records my placing my fish drawing it just says 'add photo'  is there a way to make that add photo step cycle through all the photos I want to batch?

 

Thanks everyone for your time and help, I really appreciate it.

[Help Creating a Macro and Then Batch Processing it or...??]

I have 200 images that I need to do the same thing to.  Let me explain and please let me know what you would do if you were me.  Thank  you!

 

The images are all black line drawings.

I need to convert the images from black lines to white lines.

I then need to place a chalkboard image background behind the newly white image and export the combo as  one image.

 

Said another way I have a bunch of black line drawings and I want to make them white line drawings and put them on a different chalkboard image so each ends up looking like a white line drawing on a chalkboard.  Make sense?  How do I do that quickly for 200 images?

 

Thanks again!