Here's a rapid conversion I've just made : a winged warrior, the elite warriors who guard the Hive Queen Primus herself.
The model is based on a new lictor (deathleaper), with forgeworld wings. The arms are those of a broodlord with parts of the deathleaper's ones ("hands"), and a bigger talon from old tyranid bioships. also on the arms are venom sacs and a thin metal wire to feed the talon with the poison. Feet are the broodlord's hands. The head has 3 pairs of mandibles, like the mother hive queen. I sculpted plates in the middle of the ribcage and added 2 tiny claws on the chest to fill it a bit (reminder of the hive queen too). backplates are similar to the Hive queen's this shows the high status on the warrior. Finally the tail is the one of the deathleaper with 2 additionnal talons and 2 venom sacs, I placed it so that it strike to the front, the warrior is actually landing to strike on a prey.
Painting should be quick, the scheme will of course be the same as the Hive Queen Primus, Omega Tyrant and Aquactor.
This can also be considered as a Cthulhu Star Spawn, but only done with tyranid parts ;)