Pac Man Cross Stitch on Onesie

To cross-stitch on the knit onesie I used DMC Soluble Canvas. It's an 8 x 8-1/2" square of plastic canvas that you place on your project using a hoop, then cross stitch your design, followed by dissolving the canvas in hot water. Using a hoop on this 18 month onesie was challenging especially since the design is long and I'm pretty new to cross stitch so I don't know any tricks. It was hard to get the canvas straight and after I stitched a couple of the ghosties, I thought I was really crooked so I cut a separate canvas piece for pac man and later discovered he was not in line with the others. It would have been easier on a larger item or with a smaller design but hey- I wanted pac man and the ghosties- "Blinky", "Pinky", "Inky", and "Clyde"!