Yep, gradient maps are the key. NuYellow and I illustrated our process back on page
195. Are you already familiar with those posts?
But just as another example. This is my SuperWoman-Gradient applied in Procreate to the Catwoman edit above.
View attachment 3452027
That's what most of my gradients look like. Black and white on the far ends and then a shadow-,mid- and highlight-tone of the given lady. Depending on where you move those little cubes the program will apply the colors to the values of your image/layer.
I don't mind but could you provide me with a fertilization image? Preferably one that gets close to SR7s artstyle.
As for the second question. I think Hawkgirls feelings for GL could make her more resistant. WW might have a crush on Batman but that never went far.
Furthermore, if you want to see it less romantic. Hawkgirl got black and Thanagarian dick ... across multiple live times
. So it's harder to leave an impression with her compared to WW.