So, let me first start off by saying I really like the over-all design of the lizardmen. I like the asthetic, and I like how they are a very different take on the concept from Games Workshop. It's a big win in many ways.
But there are a few ways I think they could be better, and should there ever be a second kit, like Heavy Infantry, I'd hope that some of these suggestions might make it into the final product.
My only real negative with the kit is regarding the tails. The tails in the kit do not mesh well with the rest of the lizardmen's body design, and it almost seems like they were designed with a different kit in mind, given how poorly the scaled area on the back of the lizards meshes with the scale design on the top of the tails.
It would also be fantastic to get a few more tail poses- as a change in the tail is a really easy way to give different lizardmen in the same stance a very different feel for over all pose.
Above is an example of some conversions I'm working on, having found various bits in my bits collection to give a couple of lizards different tails. (two of the tails come from the horns of some big GW monster, the long tail from some GW Medusa style character that I was never going to use.)
You can also see how much better the tails look when the mesh with a back that has the same scaled pattern. A much nicer, more coherent look. And while yes, clearly some putty and work can get me the results I want, it would be lovely to not have to do it 20+ times.
(It's also frustrating looking for alternatives to the super straight "raptor" tails, which I find to be the lease useful pose of the three tails given. Myabe it's jut my opinion, but I think the models look alot better with tails that have some movement and flow.)
2) Weapons and Shields, and Shield Arms
I can understand the limited selection on weapons that was given in the set as is, to make it a versatile kit for both fantasy and sci-fi, but something that i think would give the lizardmen as a whole greater legs would be a larger fantasy weapon selection.
Or at least, if nothing else, some better left arms for holding shields!
Here's a few example of the lizardmen armed with spears and shields, one with a polearm, and one with a sword and shield- I think that the alternate weapons (along with tails to break up the poses) really make a goot kit even better, and I'm still playing around with shield options as to what design I like best - though these two are the ones I think pair best with the lizzies from those in my collection.
That said, the kits really just have one decent shield arm per sprue, and the 'ocarina' arms making an okay second shield arm with some work.
Similarly, I'd love to be able to make a larger proportion of my lizardmen into swordsmen (particularly since it seems I have already lost one converted sword arm to the vacuum cleaner #cry) but the kit has a lack of them. Which is a pity, as I like the design of thier swords quite a bit.
That's really the whole of it- tails that mesh better with the back of the lizardmen, and in a greater variety of poses to help vary the over pose of a limited sumber of lizard bodies - and a greater selection of weapons and shields. Or at the very least, a greater number of left arms suatible for hold a shield.