Just finished this and I'm actually happy with how it turned out.

An old OC pairing I had, kinda hard to explain, but I'll do my best. Ya see, I had some fun with the Land Before Time movies and imagined the Gang of Five as different species of dinosaurs. The list went like this:
Littlefoot= A female Rainbowface (I think they're supposed to be Gallimimus...) named Tiki
Cera= A female Stygimoloch named Tera
Ducky= A female Lambeosaurus named Cookie
Petrie= A male Archaeopteryx named Teryx
Spike= A male Ankylosaurus named Clubbie
After a while, I decided to even the gender score and turned Cera's 'replacement' into a male Pachycephalosaurus and was given the more masculine name of Tero

. Then....the pairing.....It didn't help that I find a lot of LittlefootXCera stuff. Now I can't get this couple out of my head!!!
Personality-wise:
Tiki= Calm, smart, a bit sassy, loving and caring, can't really lie to save her life, generally the whole good-quality package.
Tero= Aggressive, naturally vicious, strong and stubborn, naturally vicious, violent, crafty, naturally vicious and....well.....naturally vicious! Not much different from most Domeheads actually....
The story between these two (This takes place before the first movie) :
They first met as hatchlings in a time and place where species segregation is still strong. Although both were being taught to avoid other species, they were only toddlers and didn't understand at all. So one fateful day, they found each other and became instant friends. From then on, they would sneak off to play on a daily basis. But eventually they were caught by Tero's parents and Tiki's parents barely arrived in time to save their daughter from being killed. Tiki only got a gentle scolding, and as such still accepts other kinds of dinosaurs as friends. Tero, on the other hand, was severely reprimanded and he had it firmly drilled into his head to never make contact with other species again....
That is, until he met Tiki again when they were a bit older. Their friendship emerged once more with only a little reluctance from Tero. This time, they were more careful about when and where they'd meet to play and this continued throughout their childhood years. At this point, they both had a crush on each other, but won't tell the other about their feelings in fear of being rejected. Along the way, they found the other members of the gang (one-by-one, of course), each wanting to participate in the duo's activities. Tiki welcomed each new member with open arms; Tero however didn't take an immediate liking to being with them since his parents racial lessons were hard for him to overcome when not concerning Tiki herself (Plus, he didn't really like the prospect of sharing Tiki's attention) and he refused to interact with them for some time. But he eventually got used to it all and became friends with the newbies.
In adolescence, Tiki and Tero's crush only intensified and after finally telling each other about it, they became a couple, but secretly so not even their friends would notice. They most definitely kept their mouths shut around their parents, who will never approve of the mixed-species gang, much less a romantic relationship. So when they found out themselves... Once more, Tero's parents chased the gang back to where each came from (literally! Each was saved by his/her's parent) and Tero got the biggest scolding of his life. Being the rebellious teenager he was, Tero began a very heated debate with his parents, after which he ran away from home permanently. Not surprisingly, he snuck over to Tiki's nest, where Tiki was being scolded in turn.
Waiting for the right moment when the adult Rainbowfaces were asleep, he woke Tiki and they snuck off to where they can talk without disturbance. He tried to convince her to run away from home too and live with him so they can be together. They'll find a new place to build a nest, where they can do what they want when they want and never have to be punished for it again. Tiki, after very careful consideration and many tear-filled moments, agreed even if she knew it meant never seeing her family again.
So they live happily, visiting their friends as often as they could, but spending the majority of the time with their significant other. Then when the Great Earthshake struck and the segregated ways began to fade, they made a permanent herd with their friends, roaming and exploring the world as they pleased.
That's what I got so far. Sorry for all that info for people who wasn't interested; I just felt the need to explain everything for the sake of the more curious people. As for the picture, it pretty much shows past and future. Their friendship blossoming in their hatchling days (with a giant fruit!

) to a loving couple in young adulthood. The green turned out a lot brighter and more neon than I intended, but I like it! Though my scanner didn't like the color of the fruit apparently...
I hope you guys like it, it's my first time drawing a Domehead and a Rainbowface. References were in limited supply so please forgive some inaccuracies...