Skywing/Nightwing: Bloodmoon, Nightsky, Comet

Skywing/Sandwing: Quicksand, Sandhawk

Skywing/Icewing: Snowstorm, Snowyowl

Skywing/Rainwing: Harpy, Sugarglider

Skywing/Seawing: Breeze, Seagull

Skywing/Mudwing: Crane, Bonepick

Nightwing/Sandwing: Darkdesert

Nightwing/Icewing: Galaxy, Darkfall

Nightwing/Rainwing: Panther

Nightwing/Seawing: Deepsea, Tide

Nightwing/Mudwing: Swamp

Sandwing/Icewing: Tundra

Sandwing/Rainwing: Cactus, Venom

Sandwing/Seawing: Beach, Tigershark

Sandwing/Mudwing: Swampbarb

Icewing/Rainwing: Frozenrose

Icewing/Seawing: Seaglass

Icewing/Mudwing: Slush

Rainwing/Seawing: Piranha

Rainwing/Mudwing: Flamingo

Seawing/Mudwing: Mudskipper

Hope these helped you in your dragon creation.