Building my first Tyranid army

Probably the typical post nothing much special. It's my first Nids army and I feel like its very Character heavy than some other lists I've seen. Im by no means competitive, I just don't want it to fall completely flat. Its made up of things I (mostly) have and like the look of.

Tyranids - Vanguard Onslaught (1970 Points)

Epic Hero: Deathleaper (80 pts) • Lictor claws and talons

The Swarmlord (220 pts) • Bone Sabres • Synaptic Pulse

Character: Broodlord (100 pts) • Broodlord Claws and Talons • E: Neuronode

Neurotyrant (125 pts) • Neurotyrant claws and lashes • Psychic scream • E: Hunting Grounds

Parasite of Mortrex (80 pts) • Barbed ovipositor • Clawed limbs

Winged Hive Tyrant (170 pts) - Warlord • Tyrant talons • Monstrous bonesword and lash whip • Warlord

Battleline: Gargoyles (85 pts) • 10x Gargoyles • 10x Blinding venom • 10x Fleshborer

Infantry: Biovores (50 pts) • Biovore • Spore mine launcher • Chitin-barbed limbs

Genestealers (140 pts) • 10x Genestealer • 10x Genestealers claws and talons

Lictor (60 pts) • Lictor claws and talons

Neurolictor (70 pts) • Piercing claws and talons

Raveners (125 pts) • 5x Ravener • 5x Ravener claws and talons

Von Ryan's Leapers (70 pts) • 3x Von Ryan's Leaper • 3x Leaper's talons

Zoanthropes (100 pts) • Neurothrope • Chitinous claws and teeth • Warp blast • 2x Zoanthrope • 2x Chitinous claws and teeth • 2x Warp blast

Zoanthropes (100 pts) • Neurothrope • Chitinous claws and teeth • Warp blast • 2x Zoanthrope • 2x Chitinous claws and teeth • 2x Warp blast

Monster: Norn Emissary (260 pts) • Monstrous rending claws • Monstrous scything talons • Psychic tendril

Screamer-killer (135 pts) • Bio-plasmic scream • Screamer-killer talons