Some shots for scale:
Here with Hard Hero Conan (1:6 scale).
As you can see here, Lion-O looks more in line with Bowen's (1:7) scale.
I was a little surprised at the size, because when I think of Hard Hero, I automatically think 1:6 scale. The size, although smaller than other Hard Hero pieces, does not detract from the awesomeness that this sculpt portrays. I love it and can't wait to get some of the other pieces.