Softened the edges of the segments as I'd forgotten to do that stage. Probably should have rotated the different slices when changing the hue etc as well. Learning all of the time!  :-)

 

 

 

 

Following Lettie's great suggestion I've added in areas of white just behind where the slices overlap.

 

 

 

 

Added an extra citrus slice, a background and a few shadows

 

 

 

 

 

 

First attempt at watercolour in Procreate. Need to go and add some shadows as it looks a bit flat at the moment and add some interest to the background