Hi Nanabear. I think you did well with the shark fin colors and the off white. Again, I think that these are workhorse staples, and classic silhouettes. I would vote for the sand color because I am in Atlanta. I could make that color work from spring into maybe early fall. I don't vote for black pants, but I think the overwhelming majority of peeps here on YLF do. Do you need a black pair for going out at night in warmer months? I can see how the black pants can be styled up for a summer evening, but where I live, who'd want to be covered up that much on a summer evening? I would look at the other colors for indoor business or career for summertime or cool spring and cool end of summer fall daytime. Maybe repeat the colors that you have already/ They are nice colors. Come to think of it, I wish I had more opportunity to wear pants in summer. Up to you. I am slow and steady when it comes to building a wardrobe. I tend to stick with what works if I am still happy with it, leaning on classics a lot.. These are classic trousers that you can changr up with trendy jackets or trendy tops and blouses and shoes. Just my 2 cents.