The picture of the Netmodels is from german store
Flugzeugladen Passau
and I found another picture at
MLS. Modelutions Dormagen.
So its no sample, I think.
Regarding the colors I can only say that I have quite a few Hogan ANA´s in my collection and that the colors match the real thing very well.
I have also BigBird models and one Dreamjet model and especially the Dreamjet model differs in colors.
So if you want to enlarge your ANA fleet and have lots of Hogans I would recommend to stay with them to have a commonality. There is probably not a very striking difference in colors, but you will at least recognize it, when you park them next to each other on your tarmac.