Huge difference. Nice job!
Here's my attempt for restoration of this very rare dial:
First I tried rust-remover, very gently and slow, with ear-stick:
Then with a dilute Meglio (fat cleaner), very quickly (10-15 seconds on an area). Unfortunately 'Made in USSR':
But I was afraid to use Meglio in the center of the dial (to remove the scratch from the hours hand), so again with rust-remover:
And at the end, in the watch: