I’ll echo these comments. Miniatures, regardless of what game they are for, the building, painting, and modifying of them is a hobby, and like all hobbies, you do it for YOU. If you’re having fun, then no matter what they look like; you’re doing it right.
Miniatures is an art form in a way. There’s no right or wrong way to do it, and it sometimes feels like there are nearly as many ways of doing things as there are modelers out there. The real trick is to find what works best for you. Don’t be afraid to experiment, and have fun. It never hurts to see how other people do the same model and take inspiration if you see something you like, but you should never feel like you need to do something the same way as other people.
That said, your models look really good, you have every right in the world to be proud of them.
Something that works for me that I haven’t seen talked about much in this thread is “Solid” vs “Soft” Solid things, like power armor, signs, cars, and similar are things I tend to paint differently from more organic things like skin and cloth. When painting items like power armor or metal, I tend to paint it and use shading to bring out details as to me that tends to look more natural. In contrast, painting things like skin or cloth I like to start with a solid color and use washes to bring out the details instead.
Forgive the quality, I’m ten years out of practice, and even when I was at my best most of the artists in this thread are more talented. Just posting mine to give an example.
In these two pictures, the gun and radio are “Solids” I mainly worked with solid colors (Radio I use a wash to bring out the detail on the back, but that was about it) The colors on the radio were done with shading, black undercoat with drybrushing for most the rest, thin enough that bits of the black showed through in places to give it that older tarnished look. In contrast, the skin, hair, and clothes are “Soft” and done with a solid color and a wash for a more organic feel. Little drybrushing for detail and the model was mostly done.
Best advice I have for you: You clearly have a pretty good start. Keep doing what works well, learn what you can, use what you like, and more than anything else; just have fun with it.
PS: The model I posted still needs a little work. Need to do some detail work to the jacket. And the magazines and radio aren’t attached in that image (They’ve been glued in place since then.)