"Who really is the faithful and discreet slave whom his master appointed over his domestics, to give them their food at the proper time? 46 Happy is that slave if his master on arriving finds him doing so. 47 Truly I say to YOU, He will appoint him over all his belongings.
48
"But if ever that evil slave should say in his heart, ‘My master is delaying,’ 49 and should start to beat his fellow slaves and should eat and drink with the confirmed drunkards, 50 the master of that slave will come on a day that he does not expect and in an hour that he does not know, 51 and will punish him with the greatest severity and will assign him his part with the hypocrites. There is where [his] weeping and the gnashing of [his] teeth will be.
I would surmise from these words of the Lord, that the F&D Slave consists of any individual attempting to feed those following Christ at the time he shows up to make judgement. They will be judged as 'Faithful' or 'Evil' according to His Judgement then. Looks like many claiming that spot of superiority will fail, and will have teeth worn down from the gnashing of them. Likely that will include a whole bunch of false teachers.
But since I couldn't see your pictures, I don't know if this is what you are asking about or not.
Jeff