Don’t be afraid of colour. Have fun and use colours you love in the accessories, which don’t cost a lot to change out. If possible, change them seasonally to keep your interiors fresh and up to date.
White is a wonderful colour. I use it as my base throughout my living space, I then add colour with accessories. Always classic, never outdated.
The sample pots and large poster boards you can paint, I encourage you to do this before committing to a colour. Depending on the time of day the boards will take on a different hue, move them around the room.