MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I print it on 0.1mm and color it with different tone.
Adjust your extruder settings in slicer - looks like you're over extruding just a little.
Print them in ABS, and before you paint, sand where you can, then wipe the whole part down with acetone (use a q-tip or paintbrush) - will bring back gloss.
Alternately, if you want full smooth surface, look into Acetone vapor wash (look on youtube) - very easy.
Great job :)