The first OVA was perfect in almost every way, but the second OVA was unwatchable. It felt like a Tenchi OVA with the tree costume, cartoon sword physics, and barely any mecha action, not to mention having to see the characters in rough early digital paint and the most baffling uses of CGI (really? CGI curtains and buildings?). I don't know how good the other OVAs are, but let's hope they have the amount of action and mundane steampunk details (like steampunk construction sites) that was in the first OVA.
I really love the trains in Sakura Wars; here are some clean artbook pages of them:
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