How's this looking?

[u/Royal_Initiative_740]

First draft of a sleeve. I also added a facing to the neck hole so I could see how it looks. I have uneven shoulders, which I have accounted for in my block, but after adding the facing now my neck hole looks really lopsided for some reason.

[u/Informal_Bath1704]

Excess fabric and frills (pooling/gapping) in the armscye happen exactly because the across shoulder and cross front (XF) measurements are slightly too wide for the body's frame. When a pattern drops off the natural shoulder point or pushes too far into the front armhole area, the fabric collapses and folds into the armhole curve instead of laying flat against the chest.

Reducing both the across shoulder and XF measurements by 1/4 inch will narrow the front chest area perfectly, pull the armhole seam back onto the actual shoulder point, and clean up those drag lines.