Interesting stuff going on that I'm trying to fully figure out. Certainly the hole right of center at the bottom is a VUK with an under field trough leading to it. I'm not sure how that plays with the three inserts stretching diagonally up to the right above that, or the semi circular point after those inserts. Clearly the drain for the pops feeds down and through this area. I'm wondering if that means that balls exiting this area will drop down the hole and be re-served up through the VUK. Not sure.
The skill shots look like you try to soft plunge through either of the two gates that lead into the pops.
The ramp in the center is a little different too. It is clearly a ramp up, but at its apex there is also a ramp that feeds off to the right to the wireform that leads back down the field. Not sure how that split in the ramp at the upper left of the drawing is supposed to work exatcly.
Three is also just the edge of something in the center of the field at the top. That looks a bit complex. I wonder what kind of mechanism that is.
-Jim