I'd have to be a immature/master modeler,i don't bother with the cheap and nasty kits
[unless i really want the subject ]i'd rather do a nice Tamiya or Hasegawa kit,i don't go for much aftermarket parts only seatbelts and brake lines on my A/C i'd rather spend time getting the paintjob right because bottomline you can add all the detail in the world
but if your painting is bad then the model is bad.
Aftermarket parts will come when i've gained more experience with Airbrushing and weathering.
Oh yeah Seanrgb your Phantoms look OK to me.