Hi Bryn,
Not sure of the origins of your piece, but clearly not the Jitka Forejtova item.
I know there are similarities, but the base is the major give-away.
I am not sure which came first, but two possible scenarios, this came first, with a possible re-design by Forejtova, or vice versa.
However, note that your pieces's base, is compatible with the idea of a stand-alone sculpture. Forejtova's was recorded as a stand-alone, but the Black Poppy site calls that idea into question.
Regards,
Marcus