這組人的配搭有點奇怪．．．英文點講？

The combination of this group of people is a little strange.

Combination - 配搭
This group of people - 這組人
A little strange - 有點奇怪

You can also use a little weird, or a bit strange/weird too.

Hi,
This group has something strange.
or ... The combination of this group has some problem.