Clothing design with beach style

I would like a clothing design with a beach style. Button up shirts with a v-taper and bright, vibrant color schemes. We need a custom design/pattern for branding and large scale manufacturing. The material for the design will be a blend of cotton/spandex or cotton/elastane. The desired level of formality is dress casual. If possible, I would like to have a design that is fashionable yet comfortable and is suitable for the beach as well as durable enough for a night out on the town. Attached are a couple of examples for the direction we're aiming towards.

If all goes well, we would also like to make female v-necks and some dress casul shorts for both men and women.