The main question I have about the riding beasts is how they eat? Drop down on their knees to graze (moose do that when they aren’t browsing twigs from bushes), rely on taller plants (which moose usually do), have really long prehensile tongues (giraffe tongues are pretty crazy and some other critters have super long tongues) or some other adaptation?
In that regard, I don’t find them much more objectionable than some other fantasy beasts, which often have tusks or horns that would make eating really difficult (the animals GW’s ogres ride are examples).
In any case, I am looking forward to seeing the plastic quar once they are released, they have always been fun sculpts.