Pretty good but a couple issues when going to a TL783C.
With those resistors - you are running at 59.45V... quite close to desired voltage.
Across those two - you are running about 2.67mA.
1 -- the easy issue:
For R3 -- you would need to go to at least 1/2W for that one.
At 1/4W, you're running at just over 50% load.
2 -- the not so easy issue:
I used these in a design for house arrest GPS tracking system many years ago (ankle bracelets linked to a special cell phone). The tL783s were used in the base unit - breath analyzer with video and cell phone lock/charging station. This was one of the most fun projects I ever worked on and even had a half page article in USA Today newspaper. The best part was putting through lots of testing - including the breath analyzer.
The TL783's are quite reliable but have one issue: They have a minimum load current. If you are below the minimum load current then the voltages go out of whack. If you don't get close to the minimum load - the voltage was always off (I can't remember if it was too high or too low).
The listed minimum current is 15mA. You would need to go down to the range of R4 at 100R and R3 at 5.1K. This would get you closer at 11.4mA (spec wise, still low but closer). R4 could be rated for 1/4W still (dissipating just over 0.013W). But R3 would be running at 0.66W so need at least a 2W resistor there. At 2W, this would make the resistor into a little space heater. so 5W would be preferred.
The other option is to stay with the 470/22K divider resistors and add a 4.7K, 5W load resistor to the board. This would add about 13mA load at the board output and would hold the regulator within the target voltage range. Again, nice little space heater.
Just no easy way around this second issue.