I have found 16 differences:
1 - bone in the ham
2 - the top of one of the posts in the wooden fence between trees on the right side.
3 - a lock of hair from a Teutonic warrior
4 - a rabbit(?) under the left arm of a Teutonic warrior
5 - a transparent apples
6 - jug outline
7 - The gaul has a blind eye
8 - stripe on the mountain in the background
9 - A flower between Gaul and Roman
10 - rivet on the bottom of the helmet of the Roman
11 - a small arc on the tattoo of a gaul
12 - A fire on the right candle
13 - the color of the drink in the Roman's mug
14 - a rabbit(?) over a Roman's shoulder
15 - A fire on the left candle
16 - the base of the left candlestick