Trying my hand and sprites again

[simmeh]

I randomly decided to attempt doing GBA sprites again. My first attempts were 15 years ago and were low-effort, low quality rush jobs (1 head + 1 body + random recolour + maybe a cape or headband). These aren't that much more complicated, but I've at least tried to put new hairstyles on the heads and keep a more consistent colour scheme within the sprites.

I'm looking for suggestions and error checking. I cannot draw or paint to save my life, so I'm mostly looking at problems with shading, proportions, angles, and anything custom-drawn, though pointing out any errors with colour consistency and seams is also appreciated. I'll also list the components I used for each sprite for reference.

001 - Lloyd's hair, epilogue FE7 Eliwood's face, Orson's body, and FE7 Karel's colouring.

002 - FE6 NPC's hair, Zealot's face, Marquess Araphen's body, and Pent's colouring

003 - FE7 Marcus' hair, FE7 Merlinus' face, Oswin's body, and Isadora's colouring

004 - Fir's hair, Cath's face, Lance's body (shrunk a bit to match Cath's neck) and Vaida's colouring

005 - Zealot's hair, Wolt's head, Alan's body, and Lowen's colouring

006 - Wendy's hair, FE7 Merlinus' ponytail for the back of the hair, Karla's face, Klein's body, Sain's colouring.