Nice image, well composed and good details
As to colour - depends on your intent.
You can do a M&T and be as scientifically informative as possible, whilst still producing a pleasing image.
... or you can go for aesthetics, using complimentary colours while still producing a scientifically valid image, which becomes an work of art.
Examples of these can be found in the works of Rick Stevenson, Suavi, Strongman Mike and well, yours truly.
Each to their own, there are no rules in NB imaging, only trends
