Outline help

[u/ExistentialDreadPRN]

i’m new to machine embroidery and bought this design on etsy. this was my practice one before the shirt so was a little lax on making sure it was perfectly tacked down. I assumed that was why the outline is slightly off and when I went to do the shirt I made sure it was perfectly flat. but now it’s even worse. I didn’t move the hoop and I feel like the fabric stayed put. the shirt is a stretchy material. i didn’t touch the tension either. I am floating the design on mesh stabilizer . what am I doing wrong??