Oh sweet yes!
That one's looking lovely, but as mentioned earlier, not everything in the Netherhells needs to be big and beefy. Sometimes the quick and lithe things are even scarier, like the Lurkers.
Spikes, tusks, fangs and armour etc. are all I'd go for personally - tentacles detract from the savagery for me, but it's just a personal preference. I'm sure 'Hellish conversion kits' would sell well too.