For these trees I opened my image file in Photoshop Elements and made it a reverse -- so instead of black trees on a white sky I had white trees on a black sky. You see where I'm going with this don't you? I also made it large enough to cover both pages of my journal and printed it on regular computer paper.
Random piece of Useless Trivia -- did you know that UHU Glue sticks come from Winthrop Maine, yes my neck of the woods. Nothing comes from Maine. ha ha. I didn't know this until my stash ran out and I found out that JoAnn's doesn't carry UHU anymore and I was trying to find out if they were still in business.