Mutalith vortex beast using slaughter brute head

Hey all! I really love the look of the slaughter brute head if I ran that head instead of the tentacles but put the warp vortex on its back can I run it as a MVB in tournaments?

I am sure my friends will be cool with it but I don't want to regret which head I use. I want to paint the dragonish brute head way more than the tentacles.

Edited: my spelling of tentacles