Fighter/Artificer (Thunder Gauntlet focused) build (suggestions appreciated)

[Laevatein]

Had an idea to build a Thunder Gauntlet-using character, inspired mainly by Velvet from Bofuri and Subaru from Magical Girl Lyrical Nanoha StrikerS. The group I'm with plays mainly one-shots, usually at either 5th or 9th level. I've built her at 9th level (for a 5th level game I'd probably go straight Artificer). Wondering if anyone here could give the character a look-over and make suggestions.

Variant Human Artificer (Armorer) 3/Fighter (Eldritch Knight) 6, Background: Soldier

Str 13
Dex 10
Con 16
Int 18
Wis 10
Cha 8

Skills: Arcana +8, Athletics +5, Intimidation +3, Investigation +8, Perception +4

Feats: Dual Wielder, Telekinetic (+1 Int), Fey Touched (+1 Int)
Fighting Style: Two Weapon Fighting
Armor Model: Guardian

Spells:
Cantrips: Mage Hand, Guidance, Toll The Dead, Booming Blade
1st Level: Magic Missile, Thunderwave, Detect Magic, Faerie Fire, Disguise Self, Alarm, Grease, Shield, Chromatic Orb, Earth Tremor, Longstrider
2nd: Misty Step (from Fey Touched)