This has been covered in many, many threads - there was no blue 361st FG a/c - all the evidence is that they were OD.
Sadly there has never been an accurate reproduction of the Lou IV colour scheme - shame when it is such a historically significant aircraft. Also there are enough photos around of it for their to be no excuse in getting it wrong.
The most common mistake is that Lou IV only appeared on the left side - on the right side should be 'Athelene.'
I recently visited where the original Lou IV came down in France - very atmospheric - it appears that a wing may have come off in flight according to eye witness reports - Col. Christian was bombing rail yards and he may have dropped his bombs to low and have flown through the blast or he may have pulled out too steeply. For more info see: -
http://www.361fg.com/news.htmI have just set up a small museum at Bottisham and have my business premises just opposite the old officers mess.
My offices

The memorial to Col. Christian in Bottisham

The museum open day

Inside the museum

Col. Christian's probable last resting place

Col. Christian

Lou IV/Athelene & the Bottisham 4