Fitting the Ceylon muslin

Here are the pics of the Ceylon dress muslin. I've cut size 2 and it fits perfectly. There are 2 things I need to change:
- I want a little flatter curved front yoke
- the upper curve of front bodice piece under the yoke must be shortened a bit

Today I prewashed my fabric (a linen-cotton mix)







Here you can see that there is some bulking under the yoke:



Here it is gone:



I marked the line on the muslin with w pencil:



And transferred the change on the pattern piece: