Looks fine with 2 minor issues:
exported as a bin rather than a part to convert:
unzip the dc_dc_converter_xl4016.fzbz file then zip
part.xl4016_b892c2186bbdebb9487512b5833305e0_4.fzp
svg.breadboard.xl4016_b892c2186bbdebb9487512b5833305e0_4_breadboard.svg
svg.icon.xl4016_b892c2186bbdebb9487512b5833305e0_4_icon.svg
svg.pcb.xl4016_b892c2186bbdebb9487512b5833305e0_4_pcb.svg
svg.schematic.xl4016_b892c2186bbdebb9487512b5833305e0_4_schematic.svg
in to a .fzpz file to make a loadable part.
Breadboard:
Looks fine except the connectors aren’t on .1 boundaries
in the Inkscape top tool bar set units to in then change
connector2pin x 2.299 y 1.135
connector3pin x 2.299 y 0.927
connector1pin x 2.299 y 0.719
connector0pin x 2.299 y 0.510
to
connector2pin x 2.299 y 1.120
connector3pin x 2.299 y 0.920
connector1pin x 2.299 y 0.720
connector0pin x 2.299 y 0.520
The change puts the pins on .1 inch boundaries and makes the wires that connect parallel to the grid rather than offset slightly (which likely matches real life) in your version. Either works, I just prefer breadboard to be on .1 in boundaries.
Here is a part edited with part editor to change to varient 2 and a new moduleId so it will load beside your original and zipped as an fzpz file with the above change done and a test Sketch.fzz sketch that illustrates the difference (which is quite subtle) in breadboard. You will see the lines connecting to the connectors on your original module on the bottom are very slightly above the horizontal whereas mine on the top are flat. I’m not sure its worth fixing but in general keeping pins in breadboard on .1in boundaries is a good idea.
dc_dc_converter_xl4016_2.fzpz (17.4 KB)
test Sketch.fzz (39.4 KB)
but I’d say you have been successful, it is a good part either way.
Peter