cker ▁and ▁La ▁Bay ad ère ▁during ▁her ▁first ▁season , ▁following ▁with ▁the ▁role ▁of ▁Tat iana ▁in ▁On egin , ▁which ▁became ▁her ▁favour ite ▁role . ▁In ▁ 2 0 0 3 , ▁at ▁the ▁age ▁of ▁ 1 9 , ▁Sem ion ova ▁performed ▁with ▁the ▁English ▁National ▁Bal let ▁in ▁Sw an ▁Lake , ▁receiving ▁appro ving ▁reviews ▁from ▁English ▁critics . ▁The ▁following ▁year ▁she ▁joined ▁the ▁California ▁Bal let ▁in ▁their ▁production ▁of ▁The ▁S leep ing ▁Beaut y , ▁again ▁impress ing ▁critics ▁despite ▁what ▁they ▁term ed ▁a ▁disappoint ing ▁overall ▁bal let . ▁ ▁App ear ing ▁in ▁Herbert ▁Gr ön em ey er ' s ▁ 2 0 0 3 ▁music ▁video ▁" Demo ▁( L etz ter ▁Tag )", ▁which ▁was ▁later ▁uploaded ▁to ▁YouTube , ▁brought ▁her ▁to ▁the ▁attention ▁of ▁both ▁the ▁dance ▁community ▁and ▁the ▁general ▁public . ▁Sem ion ova ▁is ▁one ▁of ▁the ▁featured ▁artists ▁on ▁Euro Ar ts ▁DVD ▁" Div ine ▁Dan cers ▁Live ▁from ▁Prag ue ", ▁in ▁which ▁she ▁d ances ▁a ▁pas - de - de ux ▁from ▁the ▁bal let ▁" Man on ". ▁ ▁In ▁ 2 0 0 9 ▁Pol ina ▁participated ▁with ▁the ▁Berlin ▁State ▁Bal let ▁at ▁which ▁she ▁ch ore ograph ed ▁with ▁Vladimir ▁Mal akh ov . ▁ ▁In ▁ 2 0 1 2 , ▁after ▁a ▁conflict ▁with ▁Mal akh ov , ▁she ▁moved ▁to ▁New ▁York ▁and ▁became ▁a ▁principal ▁dan cer