Here's everyone's disc drives and w-engine 

For Velina im using: Wuthering Salon as my 4 piece and Moonlight Lullaby as the 2 piece with Drill Rig as my w-engine only for the extra energy Regen

For Yidhari I'm using: Yunkui Tales and the 4 piece and Branch & Blade Song as the 2 peice with puzzle Sphere as my w-engine 

For Luica I'm using: Moonlight Lullaby as the 4 piece and Yunkui Tales as the 2 piece with Dreamlit Hearth/ her signature engine as the w-engine

For Ye Shuguang I'm using: White Water Ballad as the 4 piece and Branch & Blade as the 2 piece with Cloudcleave Radiance/ her signature engine as the w-engine

For Cissia I'm using: Dawn's Bloom as the 4 piece and Moonlight Lullaby as the 2 piece with Gilded Blossom as the w-engine

For Piper I'm using: Freedom Blues as the 4 piece and Hormone Punk as the 2 piece with Roaring Ride/ her signature engine as the w-engine

For Lucy I'm using: Swing Jazz as the 4 piece and Hormone Punk as the 2 piece with Kaboom Cannon/ her signature engine as the w-engine

For Koleda I'm using: King of the Summit as the 4 piece and Shockstar Disco as the 2 piece with Hellfire Gears/ her signature engine as the w-engine

How well are my characters built and does anything need to be changed?