accept the statement about size and shape differencies, but how many of us get with the micrometer to check proportions?
You don't NEED to get in with the micrometer for the proportions to look way off.
They won't look like children's skulls, they'll look like half size adult skulls. Put a 28mm guardsman up against a 54mm Guardsman - does the small guardsman look like it could feasibly be a child?
No, of course not.
Surely psykers are gifted from birth not developed with age
Wyrds develop quite early, but most other psykers develop at some age (sometimes "coming in" in more than one stage.)
Anyway, being a psyker is not justification for being a servo skull - in fact, given the general prejudice against psykers, they're less likely to become a servo skull.
My issue is that I can't see a child having either performed deeds of a magnitude for them to either be honoured or need to be redeemed to the extent that one would use their skull for this purpose.
This particularly comes down to the fact that you're suggesting several. One child amongst a group of adult scale skulls - that may be justifiable. But someone who is surrounded by a swarm of children's skulls seems very improbable.
The only real explanation that comes to mind is that they were the owner's family (who got killed in some atrocity), and they wish to be accompanied by their dead children's skull until their own death - very twisted... but therefore, essentially perfect.
As I said before, if you can model with the skulls in an appropriate manner (if you can add some width to the 28mm skulls with green stuff, that may solve the proportion issue to some degree), and you can adequately explain why the children's skulls have been used (bear in mind, quite a number of servo skulls are people that their owner once knew, or are continuing to serve in a role they once did. So, servo skulls in an Arbites Precinct are likely former Arbites) then go for it - however, if you're having to fudge on either one, then that's not really very good, is it?
