I agree with AM, Probably something of the Abdopus genus. Maybe even an Octopus Capricornicus. Do you know where it was caught? and how about some measurements.
The second and third photos look like replicas of Norman's capricornicus, especially the pattern of the large spots on the mantle. As Tommy suggested, if you can estimate size (capricornicus is small 4 cm mantle and 20 cm arms) and give the capture location that information would be very useful. If you have access to Norman's Cephalopods A World Guide look on page 239.
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