@Sylux and Ged Thanks for the opinions. Seems like the middle right will be the one I develop further.

The arms may not be perfect as it was just a quick painting to help me put down some ideas.

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Here's a WIP of a mecha caracal. It's my first real attempt at doing mecha type stuff. It's a lot tougher than doing purely organic stuff. I find myself trying to visualize if what I'm drawing could actually function (or at least has the impression of being able to function), which is a real challenge.



Here's the initial sketch that I did from reference of a caracal.