This is what the Coloring Page (txt Prompt) generator looks like.

First, you will Describe your scene or subject.

Then Use the drop down menu to choose the Series/Book theme if you want. and what number this image will be 1-100 of 100. Not required but to keep track of how many you have created. This app will keep track via your browser, so the next time you use it, it will show you what you have already created.

Last step: tic on the modifiers you wish to use. I chose Nature Elements, geometric Shapes (because it's for young children 6-9) Activity Elements, Character Expressions.  And you can tic or untic any of the Mistake Proofing elements that you may need.

Finally Hit Generate:

The input text I used to start with- a dancing Poodle with very curly hair, standing on an old opera stage, wearing a ballerina costume, posing with front arms in the air, balloons floating over her head

You can copy prompt from here, save to your log in case you want the same one, but to make a few changes to it: Keep the themed pages consistent. Or you can can click on Generate Variant and AI will change it for you, just a little. I will go over that After I show you the Pages that a couple sites gave me using this prompt.

I hit the varients button and this is what Google Ai Studio gave me.

Here is what Perchance Image Generator Gave me. I set it to CARTOON Once you hit the generate button, it will show you the page size drop down and the How many, I chose 2. And hit the generate button again.   This one is not as reliable for quality, but it is a 100% free, Actual Unlimited pages.. You can produce thousands of images and it will not boot you out. But as you can see. It makes mistakes. It gave me one image with pink coloring in it.  The pages are CUTE, but it is not completely reliable.  More direction on how to Use Perchange HERE