Not saying these  , but you need a few wider brushes for painting the larger surface areas ,

these go up to 1.7cm

2 cm is probably wide enough .

https://www.amazon.com/Acrylic-Brushes-Synthetic-Watercolour-Painting/dp/B0CY4PDZN6/ref=sr_1_3_sspa?crid=HG6RZHVTIMI6&dib=eyJ2IjoiMSJ9.aysfZptEaPDICjxPn6gy2bAV0ImzcUfrsrytNI8usp9hQgk2cwQXIh2PWpedS-Njm4WnES8w6p9BdAMU2Co2AV69V0yzco0BMvD-XxleeH3xmZU_7CcI6pweTylC-3I94T9wrE8V78GVzy7O8X5W9JZjtxBi_bTHdol_14QwM8y6GcimxzSjCcq3yBPVavzKelV4Kvxq70HFrkVjejO6dYIXJLPHX1IuYznTalaqr7FzU9nGBeD2inzoVEIIIIJ2hFx8R5o0yxzulW_sagZq3j4iAZpxxAkL9201zQe6zhw.YeMRKR1Ak1OpLyffGQOrz8-s_lecxUNiy5SkX0b73gE&dib_tag=se&keywords=acrylic+brushes&qid=1728425651&s=home-garden&sprefix=,garden,265&sr=1-3-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1

I'm not recommending any brushes off of Amazon .

There's a lot of crappy brushes out there for cheap  ,, and some really good brushes for cheap .