Hey guys, wondering if you could take a look at my list and tell me what could work better or what would be a good supplement to my army. I'm relatively new to playing, so go easy on me

] The points value is around 1850 (1863possibly)
HQ
Librarian
-3 Skulls
-Force Halberd
-vortex of doom, summoning, warp rift
Xenos inquisitor
-psyker
-Power armor
-Conversion beamer
-Power sword
Elite
Doomglaive dreadnought (190pnts)
-ven, psycannon,
DCCW where you can choose to gain
D6 attacks at initiative 1
Vindicare assassin
Troops
GK Terminators (5 man)
-1 hammer, 4 halberds
-1 psycannon
GK Strike Squad (10 man)
-1 hammer, 7 halberds
-2 psycannons
Fast Attack
Stormraven
typhoon missile launcher
hurricane bolter
[/b]Heavy[b]
Purgation Squad
-1 halberd, 4 psycannons
Dreadknight
-incinerator, psycannon, greatsword, teleporter
cannot remember some of the point values or who exactly i gave psybolt (list is on other computer at home)
The librarian and terminators and dreadnought would travel together on the stormturkey (debating just reserving in or deep striking onto a skull)
the strike squad will also deep strike into the skulls as will the dreadknight
vindicare just chillin
the xeno beamer will be guarded by the purgation squad from a distance who will constantly be prescienc-ing
thanks again!