Indeed it is.
The straps on the uniform, which are a Hungarian style, doubled at resembling ribs.
And a number of hussar regiments had a skull as their badge, that was placed in their headgear. Unfortunately for a number of otherwise honorable regiments the skull was also adopted by the SS.
There are BTW no buttons in a hussar uniform, it's all held together by straps. Buttons are after all a relatively new invention (for popular use) and the hussar-style predated buttons.
The straps on the head of the horses are made of sea-shells and apart from looking decorative they doubled as some protection against sabre-slashed. Hussar regiments are armed with relatively light and more curved sabres than heavy cavalry regiments, who often used their sabres to thrust, rather than slash. But hussars mainly used their sabres to slash, because in a melee their fought more individually and with a lot more movement than heavier cavalry regiments.
And that's why the hussars wear their fur(-coat) over their left shoulder. It provided an excellent protection against slashed from sabers.
Hussars relied on their agility when fighting other cavalry types. Either in simply running away or by moving a lot and thus escaping being cut down. Hussars had a multitude of functions: Mainly escort, patrol, recce, raiding, perimeter security and harassing fleeing enemy infantry. Hussars tended to avoid direct clashed with enemy cavalry, especially in formation. Because when facing say heavy dragoons not to mention cuirassiers, they would simply be ridden down! But the type of cavalry hussars and basically all cavalry units feared the most were lancers. Light lancers could ride just as fast as hussars and simply pick them off by their lances.
- Hmm, I see, I'm getting carried away, so better stop here, before I bore you to death.