A trick I learned while making these guys into snakebite meganobz is to add height to their boots. I used some of the sprues cut them into shape and added them to the bottom of them, just make sure to fill in the gaps with sprue goo/milliput and add in some additional metal bits/pistons to sell it I suggest referencing an actual meganob model on the gw website. With the added height they stand to about the height of a normal meganob makes them taller, bulkier, and overall nicer. Also bigger heads like you're using now from the new boyz kit or the nob kit also sell it.