List critique before tournament, Auric Champions

Need some thoughts before a tournement in feb; I've been struggling with Shield Host and I know my way around Auric Champions really well. On top of that I've been struggling against heavy vehicle and range lists, that's why the Castellan is there. I was hoping for some ideas as all my test games have been cancelled so far so not had a chance to throw it at anyone.

List setup; On board: Trejan valoris with 4 wardens in the land raider Aleya with 5 vigilators in rhino Centura with 4 witchseekers in rhino Prosecutors on their own Castellan on its own

Reserves: Valerian with 4 guard with vexalia in reserve Blade Champion with 4 guard in reserve

Any advice appreciated