Most of my ideas will probably suck or sound stupid, but just throwing them out there...
Shartile
-Wearing the skull of its victim, like a mask
-Without the skull, looking more...feral? Distraught? Perhaps with its teeth bared and looking like its about to attack, or looking depressed, possibly crying, without it?
Gyrraptor
-Instead of the reptilian tail, perhaps have rooster-like feathers?
-Instead of the reptilian tail, give it like a peacock type feathers?
-Give it's head more of a beak at the end, making it more "birdlike"
Seawinder
-Make the fins more like that of a manta ray
-Remove fins completely, giving it more of a "sea-snake" look
Beetanke
-Remove the wings
-Exchange the sword-like hands for a different weapon...a mace, perhaps, or a battleaxe.
Ursice/Honeydew
-Make a koala-type one
-Make a polar bear-type one
Bubble Spirit
-Make a "fire spirit" with flames inside of lava bubbles or something like that
-Make an "earth spirit" with crystal shards inside of a rock-shaped bubble or something
Penticorn
-Give it a body with scales, like a dragon
-Change the hooves to dragon claws
-Give it a dragon's head, perhaps breathing fire?
Sahound
-Give one angel's wings, and one demon's wings
-Make the ears "floppy" like that of an adorable little puppy
Rexxel
-Remove the flames, and give it a normal cat's tail
-Remove the flames, and give it a short, bobbed tail, like this
-Remove the flames, give it more "cat-like" features, and give it Siamese markings
-Remove the flames, give it more "cat-like" features, and give it markings like a wildcat, such as a tiger, cheetah, or something like that.
-Give it a mane, like a lion
((May edit this with more later))