Its a tricky print, that really shows what a good 3D printer can do.

I printed it 12cm high, and if you use the supported STL file, that assumes that you'll be printing with 0.1mm layers, as I did. At 30mm/s, it was just under a 24 hour print.

The trailing edges of the wings are very thin - less than 0.5mm - but the supports hold them up quite well. The biggest risk is catching the tops of the supports as the print builds higher, and knocking the supports over, so I slowed down my travel moves to 150mm/s to reduce that risk. I also used a 3Doodler in a couple of spots to manually extrude some extra reinforcements in a couple of spots where I was worried the upper parts of the supports might get shaky, but that's not strictly necessary, especially if you slow the travel moves down even more