Some minor changes to spirit summons

[The Boom King]

This isn't really a big issue, just really minor stuff that could be redone if a DM finds the time.
 
Summon Creature 1 and 2 describes the spirit as one that is traveling through the underdark in despair or misery or something. Since we're no longer in the underdark, and I doubt my character's summoning these from the underdark, could the description be changed to something a little different? I'm thinking truly terrifying descriptions would be off the hook.
 
Summon Creature 3 is a Spectral Child. I think it would be cooler if the summon was literally a child character with a constant ghostly visage effect on. (not the mechanical advantage, just the look.) That would really stress how evil it is, I think.
 
Mainly just make-up changes, nothing mechanical!