Apart from the new maps by [YFS]Mayhem, several other new COLORS CTF maps have been released recently which are:-
CTF Runawaytrainv2 by Hypov8/Mr Damage
CTF Slumz by Whoop_Ass
CTF Lowriderv2 by Sonik/Mr Damage
CTF Slumz
Whoop_Ass has converted his Team Slumz map to COLORS CTF and called it CTF Slumz. It is a medium sized, classic urban styled map, which has no grenade launcher and no flamethrower. You can grab this map from here.
CTF Lowriderv2
This is a new version of the CTF Lowrider map with some fixes/changes. All I basically did was add more weapons, armour and other items as several people complained about lack there of. You can download this map from here.
CTF Runawaytrainv2
This one is an updated version of the CTF Runawaytrain map. In CTF Runawaytrainv2 I increased the lighting in the train carriages as they were too dark, added some more team spawns, reduced the number of neutral spawns, added more ammo and pistol mods and also a weapon or two. You can download this map from here.