Show here your Roman soldier impression

[Appius]

To Appius:
Well, that was harsh...
I told that I made this costume not for reenactment, but for a convention, I had very limited budget (200 €), and only two weeks time. What could have you came up with that? Also ordering things online to Finland would have taken too long, so I made everything myself. I won the second place in costume competition but of course that doesn't count anything, just mentioning...

I'm sorry if I seem to be coming across as too harsh. I would like to say that one of the reasons is that English is not my native language but looking back I can understand why you'd think I was too harsh. It was never my intention to put you off or belittle you. I believe I've even said it was a great costume. But I was trying to help you switch from making costumes to making a reenactment kit.
You see, I've seen way too many people spend money on things they soon wished they'd never bought. My own mistakes cost me more than those 200€. The main reason behind my post was to help you stop spending money on things you'd soon want to replace.

Anyway, I am quite pleased of the tunic, it is made with authentic pattern, it is about 1 meter wide, made of white linen. Not off-white, but couldn't the high ranking officers wear white? Not hand stiched, because that would have taken too much time.

Ummm, my bad, I'd never guess the tunic is one meter wide. I can even see your naked shoulder, so...

Also the subarmalis is not bad, made of linen and the pteryges have felt padding inside them. I have two linen subarmales and one made of brown leather.

The main reason behind a subarmalis is to cushion any blows that hit you. The second main reason is to make wearing armor long-term (think at least eight hours a day, three days in a row) possible and comfortable. I've seen people suffer even with a subarmalis made of four layer of linen and two layers of woolen blanket, so three subarmales, none of whis is padded, are exactly the kind of wasted money I talked about.

The caligae are usable too, made of leather, missing hobnails though.

Except for the fact that such a high-ranking officer is quite unlikely to wear caligae.

The scabbard is made with authentic way, from wood, leather and metal sheets, with a leather balteus fastened to suspender rings. Only the metal here is copper and not bronze, but bronze seems impossible to find.

Yes, the scabbard is probably the best piece of your kit. But again, not the kind of a weapon a high-ranking officer would likely carry. And don't concern yourself with the copper/bronze/brass question. Chemical composition of ancient cupric alloys is something almost nobody in the whole world recreates with any sort of accuracy. Heck, I've had a chance to analyse several ancient finds myself (using X-ray fluorescence) and the lesson I've learned is I better forget what I've seen.

The same goes for the cuirass, where can I buy bronze plates? And is it astronomically expensive like I guess it will be?

Depends on your definition of expensive. I've seen a combination of custom-made brass musculata + helmet for about 400€ plus crest. Bronze tends to be more expensive but not prohibitively so. Or you could make a leather musculata.

I wondered should I post the pictures of my costume here or not. It seems that I should have not, since "serious reenactors" can't appreciate anything which isn't 100% authentic. I'm only starting, every piece of equipment I make will be better than the last one. My goal here is to develop to a better craftsman and to make good props.

I'm afraid this is the Internet. You need thick hide to survive here.
That said, yes, go ahead and post the pictures. Most people here, I hope myself included, are trrying to be helpful. You might not like the advice. Trust me, we've been in your place too. And you don't have to follow the advice you're given. In the end, use your own head.

I admit that I may be over-ambitious when choosing a high-ranking officer to recreate (previously I made a centurio costume), but goals have to be high in order to achieve something.

A centurion would be, in my opinion, a far better choice. I guess you hope to found a reenactment group and a centurion can be much more useful than a high-ranking officer commanding a handful of fresh and poorly-equipped recruits.

I am making a lorica hamata at the same time, but it takes lots of time. I've already made a lorica segmentata, but I won't show it here, since it's made of steel and aluminium, so not authentic enough for you.

Don't worry, I'd guesstimate than more than half the world's segmentatas were made by Deepeeka. I've seen aluminium rivets in some of those segs too.

And furthermore there is no Roman reenactment groups in Finland, none, zero, nihil. I don't claim to be a historical reenactor myself, so why should I even make anything? Because I want to. Someday I will have a completely authentic Roman costume, I can only hope that someday there would be also more people interested in the subject, so a Roman reenactment group could be started. We'll see...

Welcome into the brotherhood, and no matter how harsh some of us might seem, we do wish you luck.