An honest crticism:
Pros: the pic looks really dynamic and conveys the overall scenery very well. Good work on that one.
Cons: that is not like actual jousting works! The grip on the Spear is wrong, she could hold an axe or an sword and it would make NO difference, there is no shield and no helmet i.e. protective gear. If her opponent is using and wearing actual jousting equipment, then she's already a dead woman riding.