First one is luckly missing an arm
(1d20+9)[28]
(1d6+9)[11]
Second one is not
(1d20+14)[32]
(1d6+9)[15]
(1d20+9)[16]
(1d6+9)[15]
edit: oh damn oh damn oh damn
edit 2.0 forgot invisbility grants you a +20 to hide while moving never mind *sweat face(