Two minor points:
(a) The top plate of the shoulder guard armour is pointing the wrong way round. The point should be towards the neck, not away from it. This is what the Corbridge armour finds say. For those who may doubt, see Bishop, JRMES Monograph No.1, "Lorica segmentata, a handbook of Roman plate armour".
(b) The upper chest plates are at an angle to one another. They should meet at right angles. This is to avoid the strain on the chest buckle and strap and also to accommodate the padding that was undoubtedly fitted beneath the shoulder armour.
I don't know what can be done about either of these faults. Possibly the first is easier to correct but even this will involve difficulties with the upper set of lobate hinges.
For the record, the rivets attaching the various brass fitments to the iron armour plate should be copper coloured - quite distinct from the brass (NOT bronze) of the fittings themselves. Where analysed, they were found to be at least 90% Cu.
BTW, "legionarius" is a nonsence word. In English it would be 'legionary', in Latin "miles" (meaning 'soldier'), possibly with either "gregarius" or "caligata" added (the first word being derived from 'grex', meaning 'flock') and the second means 'booted', i.e. foot soldier.