Those ones weren't too bad - but I'm thinking of doing all the class 170 liveries (15 by my count!) when I do the 172...
national express scotrail (white/green/purple/red)
first scotrail (indigo/white)
strathclyde (maroon/cream/green - very similar to above)
london midland (white/turquoise/green/grey)
first transpennine express (blueish/pink)
midland mainline (turquoise)
south west trains (white/orange/red)
central trains (white/purple ex porterbrooke)
central trains (turquoise ex midland mainline)
central trains (green/yellow/blue))
cross country (grey/maroon)
hull trains (green/white)
I make that 16 main liveries, 19 including variants, rebrandings and so on, plus another one to come soon. This doesn't include various all over advertising liveries...