Finished them all up and weighted/based them. Here are them free standing on a 2 by 2 AotP board. Let me know what you think!
*New Question* What sort of special rules would you think could be used for these?
I was thinking somewhere on the lines of, "If you control two more figures adjacent to a Hedron than your opponent, roll a 20 sided dice. If the result is 15 or higher summon one Eldrazi Scion figure that you may activate in addition to your standard unit activation. If you do not succeed in spawning an Eldrazi Scion mark that Hedron, neither you nor your opponent may spawn Eldrazi Scion Figures from Hedrons that have been marked. You may only activate one Eldrazi Scion figure per turn as a bonus activation.