I like the composition of the first one, it has nice contrast of light and dark which is what I often look for if I'm thinking of doing B&W (or deciding whether or not to put B&W film in a camera). But I agree something looks off, it seems choppy visually.
I like the idea of the second one too, it might be too much grass and not enough horse and wagon lol - actually I think less foreground might be better, and more of the trees showing - those light tree trunks would make for a nice background against the rest of the foliage but they're kind of cut off abruptly across the top.
You can create a vintage look but that may or may not convince anyone it's actually an old photo. The second one seems to be a good subject for sepia, but on here at least it borders on being a little too intense? or too coppery maybe. You could look up historic photos on sites like maybe the Eastman House collection to see tintypes, ambrotypes, daguerrotypes etc.
And if you type a word it'd be easier to click on than a dot. Keeping it simple would do - 'scenery' or any one word would probably be adequate.