So I created this design and went to the recommended artofwhere.com website. I may have missed something in the class, but when I uploaded the the tile it wasn't a repeat pattern, it was just the block tile. I also got messages that the dpi was to low...so....I opened Photoshop, opened the tile I had created and defined it as a new pattern. I then opened a 10k x 10k new canvas, created a new layer and did a fill with the birdhouse pattern. Then I went back to artofwhere and selected the flare dress and uploaded the saved 10k X 10k pattern and had a dress. I also used this on the pillow with success.
I found this to be a great class and love the website you recommended. It gave me more design tools, helped me to slow down and take my time, reinforced skills on Procreate and I may just have to buy a pillow - :)