Equipment check - Shadow Knight

[Soothsayer]

Hey! I'm a level 18 SK (new-ish -- I have a level 31 main). It's been a bit of a struggle to haggle, wheel and deal, and panhandle (joking about the last part), but here's my character's equipment thus far. How "good" is my equipment, and what are the upgrades I should be seeking most urgently?

HEAD: Skull-shaped barbute
EARS: 2x Orc Fang Earrings
RINGS: 2x Platinum Fire Wedding Rings
NECK: Spider Fur Collar
FACE: Mask of Wurms
CHEST: Dusty Breastplate
ARMS: Crustacean Shell Vambraces
WRISTS: Hero Bracers, Crustacean Shell Bracers
CLOAK: Hooded Black Cloak
SHOULDERS: Crested Spaulders
WAIST: Thin Banded Belt
LEGS: Mithril Greaves
FEET: Crustacean Shell Boots
HANDS: Crustacean Shell Gauntlets

WEAPON: Lamentation
SHIELD: Atramentous Shield

Thanks!