pale grey: 21B1 - FS36628; 5* humbrol 34 (white) 1*humbrol 64
terracota: 7D7 - FS32169 is an approximate match;FS:32169 Deep
Yellow
6*Hu:100 + 4*Hu:154 + 1*Hu:34 + 1*Hu:110
orange grey: 5B3 - Fs32630 is an approximate match; 2*Hu7 + 1* Hu62
+ 1* Hu64 + 3* Hu 34
On the left (of the photo), first hexagons will be Pale Turquoise 24A3 or GreyishBlue 23B4
Next side will be pale grey first...
You can try to see "pale grey" with the white paper
A bientôt.