The correct options are
B gory
C own
In given sentence, the word 'gory' gives more information on how the images were; it qualifies the noun 'images'. Hence, option A gory is correct.
Option B eyes, is incorrect, because it a noun which refer to the name of a body part.
Option C own, gives more information on, by whose eyes, rather it emphasises whose eyes they are. So, it is an adjective.
Option D saw is the past form of the verb 'see', so it is incorrect.