[Credit to TheMinecraftMuse, he came up with the design and I have came up with the improvement]
It's a simple, cheap design. Each pit is 3 blocks deep and it can be replicated and expanded to account all sheep colours it is designed for ease of breeding. The pistons are simply linked up to a lever for easy access, this could be outside your base and is a very good way of getting coloured wool.
I have searched around and seen hardly many semi auto sheep farms so I have decided to create my own based off of Muse's design.
Give me tips on how to improve the design and give feedback. (I'm not very good with redstone)
Thanks in advance