v1.3 will include the new skins you sent me, plus all the previous skins from v1.2.
As the skins are of a "one size fits all" style, they can be used on all Caterham models within the mod, so copying to the Academy/Skins folder works fine, as long as you select a car that uses that skin folder.
See Note 4 in the top post for the simplest car to use for all the skins to work.