So I got the parts this week, the Angelius and Heavy Proteus arrived and the assembled model came quickly as I was eager to get it done.
Main body is the Heavy Proteus, with added Angelius wings and a venoms dart at the end of the tail, coming for; a lesser gribbly Everblight monster.
I removed the small arms of the Proteus because Cthulhu isn't supposed to have 4 arms. Thanks to the green stuff for this model, there was some gap filling well needed here despite the overal good quality of the models.
I tried to add the smaller wings on the shoulders but it was a bit overkill and too "crowded", so I removed them finally.
Here's the final model, awaiting his paint :)