Trying to sculpt my chest for the next few months while I'm on a cutting diet. I'm trying to target the upper pecs specifically because my chest looks like a slop at the moment with barely any mass in my upper pecs as opposed to my lower pecs which have muscle mass in them. My chest workouts on chest day are as follows:

DB Bench Press 10,5,5,5,5.
Incline DB Flyes 3x10
Flat Bench DB Flyes 3x10
Pec-Deck Machine 3x10

Should I add decline press to my workout? I've been reading that it is one of the better lifts to build the pecs overall.

Also, should I take anything out from my workout? I'm open to anything.