The entire birdhouse is 3D printed in PLA using the MakerGear M2 in my lab (Aggregate.Org) at the University of Kentucky. Aside from being huge, it's an easy print (in several pieces) and should be done using very low fill factors to save on material and provide air-gap insulation... use between 5% and 10%. The birdhouse was painted, rather than printed in multiple colors, because we felt the paint would afford better protection against the weather.
Probably a better alternative is to print it in yellow PLA, only paint the raised design on the front black, and optionally clear-coat the full exterior for better weather protection. It is also possible to print just the decoration in black, either as a separate piece or by stopping the print of the front at the appropriate point and changing the filament color.
The customizer allows selection of each of the parts and adjustment of some key parameters. Previously, I had not realized the customizer still has problems with DXF files... so a big change for this 3rd version is that I had to write scripts to reprocess everything into a self-contained SCAD file. The customizer works with it now, but oddly not for the "Assembled" rendering -- it only renders the front for that...?
At this writing, I have not yet printed this 3rd version, but after having printed each of the first two versions, I expect no problems with this one.