Creating a Check..

This is the first project where I have ever attempted to create a check which would be used in repeat to form a pattern for a shirt. I have produced 2 checks which I am happy with and quite a lot that don't work. I want to keep researching and gathering information into creating checks because I have started to learn that there is certain ways to do it and certain ways to avoid if you want a successful design.

Below, are 2 checks I have designed which have gone into a repeat and then visualized on a shirt as you can see at the beginning of this post.