Dragon suggestions? [Other]

For those who are in both the obey me fandom and wings of fire fandom at the same time... I need some suggestions. I'm going to be designing the characters as dragons from Wings of fire, I have some dragon species down for certain characters but for the rest I'm having a huge brain fart. What do you guys suggest? Here's what have so far.

• Mammon as a sandwing
• Levi as a seawing
• Asmo as a rainwing
• Beel as a mudwing for
• Luci and Satan was thinking them as nightwing hybrids
• Barbatos as a sea/night hybrid
• maybe Diavolo as a nightwing (idk)

• and Solomon as a icewing with animus powers.

  I'm also making Thirteen, Mephistopheles and Raphael as dragons as well. Please helpI like to hear what you guys come up with...