Steampunk Jewelry

What is it about Steampunk gears, keys, hearts, and bees that is so pleasing to my eyes? All from Deviant Art:

1. Valeriana Solaris (http://browse.deviantart.com/?q=book%20steampunk&order=9&offset=48#/d1zih14)

2. Harajukagirl17 (http://browse.deviantart.com/?q=book%20steampunk&order=9&offset=120#/d1osifc)

3. Aelislaurel (http://browse.deviantart.com/?q=palimpsest&order=9&offset=24#/d1xpq6x)

4. Monsterkookies (http://browse.deviantart.com/?q=book%20steampunk&order=9&offset=0#/d2kufz0)

5. Utinni (http://aelislaurel.deviantart.com/favourites/#/d1gfzd5)

6. Moonlitcreations (http://aelislaurel.deviantart.com/favourites/#/d1zuui6)

7. Porkshanks (http://aelislaurel.deviantart.com/favourites/#/d1lvokp)

8. Fairiedevine (http://aelislaurel.deviantart.com/favourites/#/d1bh5sc)

9. Portalmaker (http://aelislaurel.deviantart.com/favourites/#/d19bdsl)

10. Porkshanks (http://aelislaurel.deviantart.com/favourites/#/d17hhms)