I hate to be the bearer of bad news, but orcs and elves (there aren't actually any elves in Sanguine Rose at the moment) are elements of Tolkien fantasy, not The Elder Scrolls series. Vampires also don't originate from TES but that's irrelevant because Sanguine Rose has no vampires. Pretty much every stylistic representation of a castle looks similar, they are essentially rooks from chess (which is actually what the castle symbolises).
Whitewood, the name of the nearby town, is named because it is often snowing (white) and the surrounding area is woodlands (wood). This is a fairly common naming convention. Whitewood is not an important place within the Sanguine Rose world, it just happens to be next to where the story takes place. Sanguine Rose is also two words which were used together long before Skyrim.
The characters, world, lore, story, music, magic (or lack thereof) of Sanguine Rose bears no resemblance to TES series other than certain fantasy tropes which have been ubiquitous throughout the genre since Tolkien.
No, Sanguine Rose is not a Skyrim rip.