For "picturesque" and "peculiar":
* Quixotic: Suggests a charmingly idealistic or impractical quality, often with an element of strangeness.
* Whimsical: Implies a playful, fanciful, and slightly unpredictable nature.
* Eccentric: Highlights unusual or unconventional behavior or appearance.
* Idiosyncratic: Focuses on unique, individual characteristics or quirks.
For "peculiar" and "strange":
* Eerie: Conveys a sense of unsettling mystery or strangeness.
* Bizarre: Emphasizes the unexpected or unusual in a way that might be shocking or unsettling.
* Outlandish: Suggests something extravagant, extreme, and possibly out of place.
For "peculiar" and "curious":
* Intriguing: Implies something that captures your interest and makes you want to know more.
* Uncanny: Suggests something that is eerily familiar yet unsettling.
* Odd: A simple word for something that is different or unusual.
The best word will depend on the specific context and what you want to emphasize.