VERY cool development! Your eye work is coming along.
Eye decals are deceptive though, they seem easy in theory, but you have to spend as much time or more setting and pressing them into place and all, so small and into such tight spots, and I think you would actually save time trying to paint them.
But, your paintwork looks pretty "unshaken" to me. Nice job! Don't trade out yet. I think you are almost there. Be careful to make the irises a tad smaller. That only makes it harder I know, due to the even smaller scale, but will give you more of the look you are after I think, in the long run. I really like that practice eye set. Has character also.
Practice doesn't make perfect, but it does make permanent. Keep on rockin!
(It's all ultimately practice anyway...there is no real THERE to ever get to...)
Just my 2.