To me its a matter of taste

and who is the targeted group to be the end user of your 28.
I believe you should try to make the boat to stand out, in a classy way.
Im not sure that white does this for you. Perhaps white with stripes in "old" banana colours?
To make the boat stand out I would like to suggest to go for an design/coulor which makes you think back about Banana Boats successful racing history.
Personally I love the look of the old 24 "top bananas".
Colour, design and number, love the whole thing about it.
If I can afford I plan to copy the thinking behind this design and put it on my 24.
Pehaps you could update this design to be a little more modern?
Just my opinion.
However, all goes back to your targeted buyer?
Who are they?