One thing I do that works, but is just as easily blocked and punished is TK bypass into scalpels, if ya do it at the right time during her pattern, you'll evade every single bullet and hit her right in the hat!
Also, your usual superdoublejumpdash works well as val gets a lot of height. You need to learn when its safe to jump though, and that's different depending on their attack pattern.
Keep blocking the projectiles, dont try and be cool to avoid neglectable chip damage, its what peacocks do. Wait for that crucial teleport thats going to happen eventually and punish it accordingly. Remember that peacock cannot call an item drop when she's going to teleport, so again, you can see that by their pattern. If you see 2 georges but no item drops, prepare for teleport.
With Vals long jHK air combos, you can stay in the air when theres georges on the ground that you'd get hit by. Or you go all FrAcTaL on this shit and use it to do some stylish stuff.
To learn patterns, it's probably best to just try them in quickmatch with peacock yourself and see how people deal with it.
Also use your assists. I dont have any since solo, so I cant really say much about that, sorry :>