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My pleasure. It's very hard starting out. I remember. Nobody voted on my posts :)) And then slowly things changed.
With LMAC the most important rule is this: everything you use in your collage has to be free of copyright. So there are sites such as Pixabay and Unsplash where you can get copyright free images. You can also use your own art or photos in the collage. Once you use that, though, the finished product is in the public domain. Otherwise, just have fun.
I hope it works out for you :)