I love this mold and i had to make some touchups
First of all, i looked for reference pics of the real vehicle (even though its a mix of different trucks, seems to be based on a Chevrolet Silverado according to TF Wiki), and painted different details, like door handles and such, as well outlining the door lines (just like the real deal), as well the borders of the different windows
For robot mode, i started painting different details with silver, red and gold, specially gears and cables, mainly the chest and abdomen. Later i gave him a black wash to give that worn out scheme and finally some touchups with silver
Finally i decided to leave the truck mode without any visible damage, just like the movie :)
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