Thanks everyone for all the tips and support.
Yes everyone is right - practice practice practice!! I just am out of ideas too, lol... that's another issue.
I did try with my dutch Star Pony G3 remake to draw her star in pencil... omgosh even though I did it lightly, it took FOREVER for the yellow paint to cover it. That was an instance where I had to break down and use a paint pen, because of the crisp edges I needed.
I have purchased some higher quality small paintbrushes... I have some ideas but all of them need FBR and that took me so long, I just... haven't been motivated to try it again. I have two baits in the process of FBR - both are in the VERY early stages where it's a lot of "white" mixed into the paint so that it'll cover... but, I've been so busy lately that I just can't do it... lol
I just got my first custom from a user who I'd consider a true customizer (as many of you are! I'm just... not one, lol) - and she's LOVELY. She's also a yellow pony, the symbol is great... everything looks awesome, but it DID give me a little bit of hope because... it's NOT factory. I can see BARELY little brush strokes, or... one little thing a bit different than the next... and it's PERFECT that way. After seeing it in real life, and seeing how beautiful it is, I realize that even ponies that look factory really are works of art... and aren't factory... not to mention look at how many "factory errors" we see... so, what does the factory know anyway, lol.