1st set consist of 3 items
To change color just simply go to clothing > customize > combined > diffuse color panel
2nd set consist of 2 items + preset for each one
Here you need more steps to change color go to clothing > customize > combined > diffuse color panel
also change Specular color Panel, increase Specular Intensity slider and decrease Specular Fresnel slider
2nd set consist of 2 preset: without bra and without panties
Change Preset over the Preset / Custom tab > Select Existing
Credits(not include):
Pose by @klphgz https://hub.virtamate.com/resources/standing-pose-001-256.8612/
Look https://hub.virtamate.com/resources/gloria-from-pokemon.18943/
Look https://hub.virtamate.com/resources/marnie-from-pokemon-cosplay-set.18119/