hi, could anyone tell me what flowers these are please

Flowering Quince (Chaenomeles species) or Flowering Apricot (Prunus mume) are my top two candidates. Closer pictures of the stems and foliage (if any) would help settle the question.

Could be Wintersweet - Chimonanthus.

Thank you very much for the above answers, much appreciated..I ask as a friend has seen these flowers and as she is getting married next year, would like them on tables in the wedding in the reception.

Wintersweet has a lovely scent so if yours don't smell then they are clearly a different plant.

Prunus subhirtella?