Wow... I always thought #shapechange always gave #seccondshape, automatically...
Good thing that I tested the Phoenix before "correcting" you!
Phoenix - the firebird is very impressive image. The Phoenix, as it is now, doesn't fit that image, but I almost wish there was something else to use it with.
The Heron image is also very, very good. It has just one flaw - against the default dark-red background, it's beak vanishes. There's too little contrast between the beak and the background. Even so, the new heron image is better than the old one.
The rainbow mages are VERY fuzzy on anything but Best filter, at least in my monitor and resolution. The colors just blend together. I noticed this especially with the Great Sorceress; the light hair and the white robe blend in unless I check her description or make the commander icons bigger/zoom in on battle. Vampire Queen and the bigger pretenders are fine - I can't see the details of their faces, but I can tell between cloak, cloth and skin. The Lich and Master Lich look somewhat strange as well. It might be just that their color and the dark red background not working for me.
Lord of Pleasure is insane. Nature 5 and 160 points means that he's the cheapest way to get Nature 9 bless. One less starting dominion matters less because he starts better Awe than is available from Dominion 10. Being a demon is a problem, but having a Devour Soul attack is just insane - only one summonable creature has it in base game, and it's a unique, national summon of C'tis. You should bring it more in line with the other pretenders. Perhaps a Nature version of Moloch (N2 B1), Awe +1, and two default weapons (Magic sceptre, and new Touch of Enslavement (enslave, att 0, def -2, length 0, mr negates). It's physically bigger and more powerful than Moloch, but doesn't fly, so it could have the price of a Titan with similar magic (w and 1 or just 3).