I would eat that.
In a dream world drip 4ml of Botanicare HydroGuard in that standing water.
Then, Drive some spikes (clean and sanitized metal skewers, 1/2" dowels ) all the way through from top to out the bottom ASAP Those plants are drowning. When I say ASAP I mean did you finish yet? Don't be afraid to put some drain shafts in those root balls.
Beautiful plants.