Getting finished geometry-wise, right? I'm starting to like him now, and i'm starting to "feel" the way he should move and do stuff. I'd make legs a bit shorter and bulkier, but don't listen to me and wait for Viech to give his feedback.
I agree with gavlig, this is going in the right direction and making the legs a bit shorter and bulkier could work well. I still feel the mandibles would get in the way of the claws which is why I think claws/thorns strinking from below would be a more fitting choice but let's see how this developes.
And claws should be wider and thicker imo. This stompy fella made me really happy with his "tiny" feet http://i.imgur.com/2PUcsYz.jpg
If there's one thing I dislike about that older attempt it's the feet/lower legs, I don't see how the creature could jump or sprint with them. I did like the general body proportions though. (RXMT, note that this model was made with different requirements in mind and was also never finished. Feel free to use it as an inspiration but don't feel compelled to use it as a reference. Here's the original thread in case you're interested.)