We used an Angry Bird plush toy as our guide for the proportions of the costume. We set the beige trim on the bottom and built the face off of that. Following the pattern we made the shell first in a size 4T. Yes, for my two year old. 1, because he is Amazon size for his age and 2, we are going to stuff the costume a little more to try and get a nice round (ish) bird shape. We sewed the breast panels together and then added the beige panel on the bottom. We opted to double up the bottom for durability instead of cutting out the red under the belly. Fiber matting was sewn in during this process.