Why, Oliver, you've shrunk!

I made this regarding the problem with Oliver in CGI, it irritates me so much. Formerly, Oliver was the same size as Duck, but in Spencer's VIP, when the Great Western engines nearly collide, Oliver's much smaller! So, I got my Wooden Railway Duck and my Take-Along Oliver, and got this. I'm proud with the results, besides the background, which was taken in my basement, thus all the spray bottles.

*Duck and Oliver nearly collide*
Duck: Why, Oliver, you've shrunk!
Oliver: I know, it's crazy!