A close-up shot of an organic green oil drop being poured into the bottom left corner of a petri dish, against a white background. The focus is on capturing the moment when it drops and forms a perfect circle at its tip. It's a high-quality image with sharp details, highlighting both texture and color. This visual representation suggests that there should be no other elements such as droplets or splashes around to ensure clarity and simplicity for easy retail display. --ar 83:49 --s 250