Need skin texturing on my model

Hi Guys, I’m new to blender and still on the verge of learning it. Recently I’m making a human character for a game and for that I’ve picked the basic mesh from the Manuel Bastioni Labs and have applied clothes and hair to that mesh. Now I’m struggling with making the character more realistic by applying a skin texture to it but no luck. I’ve seen plenty of video tutorials but it doesn’t work the way I want it to so can anyone please do it for me. I’ll be really grateful. Here’s a picture of my model till now. Looking forward for some help. Thanks