This is a minifig-scale (or slightly larger) version of the Imperial Probe Droid. Like the FX-7 I recently posted, it was originally intended for the Build a Droid contest on FBTB, but I didn't finish and photo it in time!
The main pic is so awesome, just like your Moc! Itīs so detailed, great job!! Congrats on MOTD!! I checked out your other Star Wars stuff and noticed, you just build original trilogy MOCs (so far). Thatīs great, the original movies are so much better!