That's a pretty standard looking motorcycle jacket, but I do think the zippers should be taken off (assuming that's an option in the customization).
Noodle,
Depending on if/how they treat the leather, the different skins will have different levels of pliability. Lambskin will be the softest, but also probably the least durable, though all of them will be plenty sturdy. It'd go something like cow/Horse>>Goat>Lamb. Horse and cowhide are incredibly sturdy but also generally require significant break-in. But, again, if they treat the leather at all, it could drape just like any other jacket.
Goat skin also has a bit of a pebble grain to it, so it'll look slightly different. Don't know anything about calfskin other than the grain will be tighter (smoother) than cowhide and it may even be more durable.
As far as styling, just make sure you get something that isn't at all loose. If anything, you'll want it to be just a little snug as the leather will loosen and mold to your body over the months/years. Also, consider the length. Motorcycle jackets are designed to hit at the waist, so unless you have it lengthened, all your shirts will show past it unless you tuck them in. Perhaps that's not a problem for you, but if your like me and hate tucking in shirts with jeans and also hate shirts being longer than outerwear, you'll want to add an inch or two to the length. To that, however, is the pliability again. For example, my Vanson was a mid-weight jacket and it was still stiff enough to stand on it's own when I put it on the floor. Even after 6-7 months of frequent wear, it's still stiff enough to push up into my face when I sit down because that added length + the rigidity means the bottom of the jacket hit's my thighs and which effectively push up the entire jacket because it's not yet broken in enough to drape over them.
Last thing. I expected this kind of annoyance, and actually wanted it, because the jacket was bought to be an everyday wear for the rest of my life. I wanted a jacket that I didn't need to care about scraping up or tearing, and would actually look better as I beat it up. Something that can all do that requires a good couple years break in, honestly. So if you want more of a fashion piece, I'd suggest mentioning that and seeing if they have any treated leather, or just go with the lambskin.
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