>> Do not post in threads if you have nothing to add. If it goes onto an older page, leave it until you either post eith a sprite or someone else posts. What you did is called SPAming and bumping, and if you read the rules, you'd know that things things are forbidden.
Anyways, the sprites are nothing special or interesting, though I must say I liked your idea of making 'Quagsire' into 'Quagmire'- I never thought of that! Very witty. XD It isn't amazing, but it's pretty cute. Maybe you could have added more yellow spots. *shrugs* It's hard to crit a simple edit. Still, kudos on being creative.
Now, the revamps really aren't revamps. Recoloring the sprite so it has the colors of the Third Gen sprites isn't a revamp. You need to fix the shading, especially the highlights (because those areas are too small and too few).
On Metapod you might want to add another shadow color, a darker one, because right now it's too plain- of course if you made the highlight bigger it would look much less plain as well.
With Executor, add a highlight color on its main body (the brown part), make the shadow area smaller (it's too big) and take away the half tone shading. Also add more highlights on the leaves, and you need to edit the colors of the outline a bit. The outline of the three heads also needs to be fixed- it shouldn't be entirely black. No outline should only be black.
The devamp is decent enough, though I'm not too good at criting devamps so I can't give you a very good opinion. But the most highlighted area should be white- I remember the old sprites had white highlights. @_@
Overall: not bad, but you might want to check out a few tutorials, especially the one on revamping and so on. Keep practicing- you just need to work on your spriting a bit more.
Good luck,
~Psychic