Struggling and could use some advice

Hi all, I'm new to digital painting and struggling a bit with how to get the details right on the croissant because I know the colors aren't blended enough but anything I add seems to make it look flat/messy. Any advice? I'm going for an oil painting feel.

https://preview.redd.it/4qohwqm07rsf1.png?width=1272&format=png&auto=webp&s=52e2a4416c659edcd75068548e79e95ccec7f2db

(Note: The reference photo isn't mine. I found it on google images from Food52.)