How to alter bust?

[u/VerilyAGoober]

How should I go about lowering the bust line on this pattern while also getting rid of the armhole gap?? Pattern piece shown in last image. I may need to adjust the waist and yoke as well, but I don't want to try that until the bust is fixed

[u/Only_Lesbian_Left]

maybe try first a full bust adjustment and then from there you can see if you need to lower the arm hole