Lol I can empathize with that, there's been a few times I've tried to achieve a certain look only to screw up my anatomy. Getting back to the basics is always the hardest part.
The new drawing looks much better compared to the previous ones you showed! If it helps, the nose bridge of a child is usually less pronounced than an adults. The younger the child, the less developed it is.
I have to say, finding your own style is probably one of the hardest things to do as an artist. You can be completely proficient in anatomy, and drawing realism, but learning how to exaggerate features and such to where they still look like a (not completely deformed) human is a challenge.
If I can make another suggestion. This sounds bad, but if you ever get free time to goof around you can always do some tracing studies of other artist's styles. For many people that's a good method for training your hand, and expanding your horizon. Like, pick a few illustrations from an artist your really like, do a few studies, try to draw that style blind, then experiment by using your new knowledge to change up your own style. When I was a kid (not saying you're a kid) eyeballing an artist's style really helped teach my hand to do new thing.
Yeah, your own readers are pretty much useless when it comes to delivering feedback. Some of mine are pretty good about it, but I bother them all about feedback regularly, I'm sure some do it to shut my pie hole. If you ever want to get really good feedback, the forum on Concept Art is a pretty amazing place. The whole site is focused on artistic improvement.