Raiten Ka
Quiris
If it is a bunch of images thrown together, I'd have to say that that probably is not allowed, or shouldn't be.
Even if they are stock images, a lot of people that do make stock images make specific rules about their work. One very common rule is that no one is to profit from their work.
Though it is not real money, if the unicorn places, the artist will be receiving a form of payment for the work.
Besides that, if it is from stock, then the original artists must be credited where the image is used. Meaning, the Monster Galaxy staff would have to list someone all of the pieces to give full credit to them.
And that's even just assuming that they are all stock.
I do fear more that it is just a bluntly stolen piece, though. The parts that have been burned still make me very suspicious.
Does using other drawings as reference for modeling or poses but still draw it from scratch count as stolen? Because I kinda use some of the drawings as reference but made my entry from scratch. .__.; I had the idea of what pose I want my Moga to be, but I checked on other drawings for accuracy, model, and the position of the body pose.
Referencing is perfectly fine. :3
Referencing is only bad if you straight EYEBALL something copyrighted, making yours the exact same.
I use references all the time, but I usually make sure that I flip my drawing/ make definite changes/ and don't copy it too close to the original. You are allowed to eyeball stock references, though, and usually be perfectly alright with those since the final work is still done in your own hand.
For Suillus, the references that I used were:
http://www.humanevents.com/images/Wild_boar.jpg
I actually originally drew him facing to the left like the reference, but I made sure to change up the position of the legs quite a bit, and played with the head shape.
And for the vulture aspects I used,
http://www.vulture-territory.com/02260195.jpg
For the wings tucked and pattern reference.
http://www.south-africa-tours-and-travel.com/images/bearded-vulture-close-up-goldengatehighlandsnationalpark.jpg
For colouring the mask.
http://www.alparc.org/var/alparc/storage/images/media2/images/actualites/newsletter-27/gypaete-barbu/208743-1-fre-FR/gypaete-barbu.jpg
And this for ideas on the tail.
Many references used in all, but as long as things are definitely changed up, you're always good to go. :3
Referencing is pretty essential in art, especially for anatomical improvement, so it can't really be avoided.