Is anyone here good at mixing / mastering?

I have my own way of mixing / mastering but I’m sure I’m doing things a bit wrong lol

I would love to send my songs and pics with the plugins I use snd how I have it set it and for a engineer to at least tell me what I’m doing wrong and what can I try to fix it

If anyone is interested it’ll help me a lot. I will pay if reasonable.

I can give you my opinion if you're interested. I'm not an engineer, I just mix/master my own stuff. I have some old music you can listen to if you wanna see my general approach (my most recent EP was pretty experimental and definitely fails in some aspects; I also think I have improved). I know a decent chunk about that sort of stuff and it wouldn't hurt to hear what I say I suppose. I'll just need to find the time, but I don't think it will be an issue.

Here are some masters of mine I like the most:
youtube.com/watch?v=DrmfgpOeis8
youtube.com/watch?v=y4a4FcOYbtQ
youtube.com/watch?v=GBY3U-8fGy4