Representing real-world spatial position allowing user selection

Problem

I'm currently designing a UI of which will eventually control real world machinery. Due to this, a portion of the controls will eventually represent real world positions of the starting position, I have the following as a mock of what I believe to be an okay representation of this which the user should instantly recongise about their specific machine.

I am slightly against using text, as theres an established userbase whom have seen this control throughout our previous iterations, but this design is lacklustre compared to the newest look&feel update I'm applying.

Top left represents the back left of the machine etc.

Question

Is this a good method of representing the previously mentioned (real world position). Is there a better method of showing this?