The miniatures are a weird tale, for sure.
#1 followed the artwork pretty closely, to its credit, but was just so abysmally small that it was outsized by the Cougar! It also had comically-scaled legs, to boot. Awful miniature, do not ever buy one.
#2 was... I'd really like to know the story behind this thing. It's by far and away one of the largest miniatures in the Battletech line- but, hey, it's a Blood Asp, it's not exactly petite, right? I mean, come on. So that's almost forgivable... almost. But then you look at the weapon layout and ask yourself what version this is- because it sure isn't any from a book. It does, however, nicely match the sculpts used on sites like Deviantart as a 3D model (and also used in the Mektek mod for MW4)... so the question has to be asked, how did the sculptor not get the right artwork for it, and how did it get approved? Very weird mini, but it DOES paint up nicely, I do recommend it.
And #3 is almost perfect, with a couple of minor issues. It's big- really, stand a third sculpt next to a second sculpt, and it's not much difference- #2 is still bigger, but much more gangly- sculpt #3 has some heft to it. The stats match up with the Prime again, and unlike #1 the legs are proportioned to the body. There are issues though- the over-the-shoulder Gauss mounts don't fit against the body well, leaving gaps that are a pain to fix. And one of the toes tries to curl over the edge of its half-base, so be sure to file that thing down so the Mech sits flat on its base. It's a tricky mini to build, but it IS very much worth it- if you want an Asp mini, third time was the charm. The second sculpt is also nice to work on- making alternate stats to fit it actually is kind of fun.