I have thoughts. This is a really cool typing to work with and there's a lot of great concepts, I think some are just lacking a little in execution.
Birkal I love the execution of the design (I am so inconsistent), just think the arms in front are so short that they're just there to show it has six limbs. I think it would be better if you extended the top two arms with a single joint like in Kabutop's Gen 3 Front/Back and Sycther's Gen 3 Back Sprite, morphologically speaking. Then either keep or remove the second set of arms, they're fairly vestigial looking otherwise.
DrifblooomCF I love the idea of this design, but I think with the current execution the termite mound looks too immobile. If instead you had a more serpentine design with mounds coming out of the ground like Diglett's little dirt patches it would not look tethered to the ground as much.
Ex:
-
-
Z-nogyroP I think the base of the design is excellent, but the castle element seems overdone and throws the design way off balance. If this were Bug/Fairy, some of that fairy tale theming would make sense, but I feel like it detracts too much from the Dragon element. I think you can keep the stone road pattern you've got going on the back, it already looks like dragon scales.
Mechanically, how is a treehopper with a tall castle on it's back supposed to jump? Sometimes less is more. If you want to keep the castle, you could actually cut it off parallel or slightly beneath the top of the front spikes and give it a rook tower design.
JAGFL My only real critique is that it's difficult to tell what's going on with all the spikes on its head. It has a jagged mouth, but then one purple spike trailing off in front, a purple spike I assume is coming from the back of its head, a long gray horn, and then a purple horn on top of that which attaches about the eyebrows like a visor. I just can't make out what this head shape is supposed to be. Is it supposed to be a wide shovel with psuedo mandibles (if so, why only one? The purple mouth horn is long enough for a symetrical horn on the other side to be seen) or is it more like a unicorn?
On the back, why does its backside also seem to fan out to have a purple tail protruding from it? Maybe simplify the design on the back end, it's tough to make sense of why these features are changing color so starkly and where they are on the creature in the given pose.
Great work, all.