Those pictures are not the best.
Better ones would help...in natural light without flash.
The head looks like it may have the fire marking, but those pics are just too small to see detail. His color looks fire-ish.
What makes you think he is a spider fire? Did you buy him as such, etc?
what is the fire mark?
1.0 albino
0.1 black pastel 66% het. albino
1.0 cinny