WOW! very good for being just started on all this hobby!
Nice brush control and light placement. As some mates have told you, some better mold line cleaning is required for a nicer result. Especially if you want to display the pieces, if they are just for playing you are already ahead of lots of people! Giving you a six to keep up motivation ;)
Most important- keep on painting. You already know how to apply a solid base-cout. Thats good.
As Lirn wrote, removing the mold lines is another major thing.
Try to watch others painting -LIVE and learn their tricks.. Have fun.