I've been receiving wall art from friends but feel bad since I can't Wall art them back. Mainly because I don't know how too. Every one I make on my wall comes out all jumbley than what it looked like first.
You need to make sure there is only roughly around 12 emoji's or less per line for it to come out in a neat fixed shape.
For mine, I do up to 12 Emoji per row. For words, I delete a few Emoji (depending on how long the word(s) are), then if there is space left over, I do spaces on each side.