I think that the lightning aura on the first should be acid.
I think the second should be melee, and a much lower thorny aura, if any at all.
I think the third should either do fire, ice, or magic damage. More like a magic creation.
Basically I think these could be very unbalanced. I'm not huge on stats, so I don't know if it really is/would be. The first creation is nothing original, but the lightning is unique, and hard to explain on a melee attack. The second just seems overpowered. No damage from Fire, ice, acid, and poison, and reduced magic and (I'm assuming) melee damage? Plus deals good damage to any melee attackers that attack it? And stunning or high damage standard? The third is nothing unique look-wise, but the acid shower... eh, it would make sense if it didn't do magical damage then acid overtime. Also take away the stunning melee. That makes it just too effective.
Overall these seem like dream creations. The things that you would love to have on your side destroying enemies with you. How would you feel if you had to fight these with the current creations though? Not a happy thought. I know dream creations are fun (I have some too ), but for the sake of balance they need to be toned down a little.