Hiya Brad,
Thanks. I also live in hope!
The figure by itself looks a little dull, hence I decided to spruce him up with a shield probably propped up against his left leg. I know that most depictions of tribunes are that they don't really seem to carry a shield. I tk that's crazy when you are in the frontline fighting berserkers. Maybe the shield was carried by an aide until battle commenced.
Anyway, the shield would be typical of his assigned legion. Since I only have the oval shield, ( I will keep the rectangular shield for the lorical segmentata soldier), this tribune can only represent auxiliary legions or eastern legions. Probably a fancier version for an officer. I am looking at various illustrations (all conjectural) and probably the design and colour will be somewhat fanciful.
rgds
Victor