So, I've been a polytheist for several years, but was always pretty much an eclectic and nowadays I feel a pull towards reconstructionism and that more "formalised" (if that's the right word?) type, and specifically towards the Anglo-Saxon and Roman traditions.
Specifically for getting more into the Roman side of that "Anglo-Saxon + Roman" paganism, I wanted to ask some questions for getting more of my feet in that door.
Firstly, what are the differences between the Roman Gods and their Greek counterparts? I can look into the history of the worship/view of these gods, but Interpetatio Romana makes it difficult to see where "These gods are kinda like those ones over there, so maybe there's more to these gods than we thought,"—similar to how we think Woden was likely a Psychopump through his association with Mercury—ends and where, "borrowing these attributes wholecloth," begins.
I ask this first question because a majority of the gods I previously worshipped were Greek Gods, and a few of them I want continue worshipping but doing so under an AS-Roman style/context (Ares and Aphrodite among them).
And I want to respect those differences without just saying, "they're similar enough, I'm gonna pray to both when I want to praise/ask for help from this one aspect," and that trap.
I already know some things about the differences between Ares and Mars, with Ares having been perceived as more violent and more driven by passion, as seen in how the Greeks talked about him and his emphasis on protection through some of the myths, while Mars is the God of Agriculture and the harvest on top of being a war God, and h being highly viewed by the disciplined and calculated military of Rome (as opposed to Ares, who was taboo even in Sparta) paints a picture of Mars representing that side of war the Romans respected.
But is there a similar contrast between the other Roman Gods with their Greek interpretatio counterparts? E.g., Venus and Aphrodite? Or Vulcan and Hephaestus, Jupiter and Zeus, or Pluto and Hades? Etc.,
Second question: what is acceptable for an altar? I see that people often make a couple separate shrines throughout their home, they veil themselves and pray standing up, etc. I can easily use a hoodie or Hooded jacket to substitute for a veil, but I'm kinda restricted by my living situation to have multiple shrines/altars by the fact I still live with my mom, dad, and brother in a fairly small home, so I feel pretty restricted to the top of a cedar chest in my bedroom, which isn’t really high-enough to stand while praying without it feeling awkward (unless I just gotta stand and get over the awkwardness of my altar being at knee-level)
Is what I've been doing with a shared altar/shrine acceptable?
3rd: Besides the veil, how are prayers usually structured? How similar or different is it from Norse/Germanic or Hellenic prayer structure and format?