First, thank you for doing it. This is for learners, so please, natural speed, well articulate
There is a blue spider in the bin.
There are two black spiders under the bed.
There is a green spider on the skateboard.
There are two red spiders between the chair and the bed.
There is a black spider above the bed.
There is a red spider in front of the schoolbag.
There are two blue spiders next to the box.
I hope this is suitable for your learners.