I'm glad you enjoy it! I know the tender isn't prototypical, but then again, neither is the locomotive!
I just wanted something simple to start with while I was experimenting with reskinning. I figured that a fictional reskin would be more freeing than replicating one since I'm just starting out with trying to make my own skins.
As for the tender, I know that the logo isn't correct, but since the GS-4 has such large streamlining panels, I couldn't let all that space above the cylinders go to waste so I slapped a logo right there and left the tender very simplistic.
Like I said, it's a fictional reskin based on the T1 you pictured there. I probably would have tried to reskin the SP&S 700 using a berkshire tender but that loco doesn't have ANY pieces on the side to repaint with the broad stripes that define the Chessie T1. Anyways, I'm glad people are enjoying it. It was pretty fun to make and I feel happy with it being my first!
