Signed flower spike vase

Beautiful handmade ceramic, a flower picker I suppose. It is a ceramic pierced with several openings, at the top to put the flowers and on the side to put the water. It is made of gray clay with a glaze in dark beige, brown and caramel tones. It is signed underneath, but I have not been able to identify the signature. This ceramic measures 10 cm in height, 9.5 cm in width, 9 cm in thickness.