Awesome job on these Fenrek! Onua looks great and the Rahkshi's awesome! I kinda find it ironic that you use Rahkshi heads on a lot of your mocs and when you build a Rahkshi, you don't use a Rahkshi head XD I think the Mask of Shadows works great there nevertheless :)
That rahkshi is very robotic and strange looking. Love the use of the Makuta Helmet/mask thing. Very unique and different looking. Oh and Onua, OH WOW ! The whole look is soo different yet soo him. Giant legs make him look powerful. I love how you made his nuva armor and kept the shoulder pieces:) Amazing job on both, but Onua takes the cake :D Just epic. Great way to remember Bionicles roots.