Besides doing clothes recolours I also do hair recolours. I always pick out the hairs I recolour and the style myself. But I am open to request. My styles are natural & unnatural. I also have some gradient hairs but those are difficult and then don't work with each hair. Natural Palette Unnatural Palette Request can be both female and male hair. But I only do alpha hairs.
I personally never use alpha hairs in my Sims 4 game. But I love this color variety! I'm prone to natural colors primarily, but the unnaturals are very vibrant.
I just looked at the download rate for all my items and they are so random. Like some gradients hairs are really populair but some are also not populair at all. Same goes for the unnatural hairs. I can't make anything out of it. So my next hair will be based on nothing other them me wanted to do it :0
@midnightskysims I'm a firm believer in making only what I need/want in my game. =) I find that it helps me keep my sanity since I like to make people happy too much sometimes.
I use several different hairs in my games...I love all your colors. But just like @KitOnlyHuman, I make what I am wanting in game. You should just pick what you feel like doing that day and do it-don't worry about the amount of downloads-if you like it that is all that matters