Here's an idea for a small bar in a corner that you could close off with beautiful draperies. The second photo shows a pretty bar cart which could hold the necessary items, and the third photo is of a simpler butler's tray.

@Genevieve : that kitchen was too small they had an island inside ,the client insisted for the kitchen to be interesting that is why I came up with an yellow The walls were already there it was a very small opening with a door ..Then it was made open type for better space

Better to open both the doors... make a sliding door. Better than a mirror look for clean half white colour paint or laminate for wine storage above. Put more of ceiling lights to see highlight the niche for easy working. dim light are only used where a person is seating to have his drink and not at the place where he store the bottles...