Assuming you mean a 3x3 piston door, this is not permitted as a trial build. We require builds which demonstrate computational redstone knowledge (given that ORE focuses on computational redstone), generally the bar is something at or above the level of a 4 bit ALU.
This needs to be provided in the application.
The actual results need to be provided, it shows a certificate at the end which you can copy and paste here.
Please reply to this application with these issues fixed and we will review the application again.