Yep, got my model from the IOW delivered a few days ago. I hoped it was a bad instance but from what I see here perhaps not
From what I can see from the attached photos, one side (white paper) shows a dip of the running plate around the cab.
I think the other side (black ruler) doesn't just go up at the end, rather it also dips at the front of the tank and then recovers upwards as you can see from the third photo with the ruler aligned with the bottom of the buffer beams at both ends.
For all the rest of the detail it's a shame a fundamental quality control issue wasn't caught for that price. I'll let the shop know so they can feed back.