TPoe's latest version is much better than that edit, no offense.  A ton of banding is apparent, and a lot of reliance on using many shades to make the armor as round and bubbly as possible instead of trying to imitate the actual shape of the armor in the reference.  Legs also look pretty noodly (his left one is about to break in half, even) while TPoe's are at least straightened out and firm.

Contrast adjustment can always be done, but I think the latest version of TPoe's works fine overall, except for pieces of the armor where it doesn't really look like the arms are going inside them.  I would definitely study the reference for how those are done.  Last time I looked at armor on the internet, shoulder plates were attached by a leather strap, so keep that in mind when designing shoulder pieces for armor.  Attention can probably be paid to the knee pieces on the leggings as well, armor pieces are usually bolted on where they rotate and piece together, at least from what I gather from looking at pictures, rather than being one single metal boot.

Yeah but his was just a quick edit, it actually helped me for a while (even though I kinda scrapped it, to make one more cartoony)

I might continue my older one, thanks to badassbill

The one on the left is my newest one, the one on the right is my old one, that badassbill edited.