First it broke the Nid rule of 3 pairs of limbs. Wings for nids usually count as a pair of limbs so technically this conversion has four pairs of limbs. So for any offended fluff bunnies, this is a unique tyranid organism and can deviate significantly from the Nid body plan while still looking consistent.
Second the effect is more of a creature that grasps its prey just enough to implant them, or attack with the scything talons at the front. The model has a profile that looks more like a wasp, which gives it it a sense of aggressive movement as the stinger is always pointed forward into an attack position.
I have also resolved that at some vague, undefined point that I really need to build or buy a photo booth. There are so many effects on this model and on the Swarm Lord that are washed out by my attempts to photograph them that I have a hard time closing the discrepancy between what I see vs what I post. Anyway here are the shots, such as they are: