It almost still looks pewter, but I am honestly leaning towards fire pewter after the comparison and over head shot. You can tell the one of the left has a pretty well defined partial stripe towards the tail and from being that young already has very very high blushing on the browns which will only get lighter and lighter with each shed. Also the lighter shades in the striping is much lighter. You can not see the lighter head or head spots on it yet but I have a feeling that will come in and change drastically over time. They also have a lot more dorsal spot patterning than a pewter.
Of course I could be wrong, I only own a black pewter and she only lightens up with age which is kind of cool. I haven't seen a fire pewter personally but it does not look like a normal pewter or black pewter to me. if so it's pretty special i think!
1.1 Fire
0.1 Black Pewter
1.1 Het pied
0.1 Pied
0.1 VPI Axanthic het Albino