Ok some comments..
First it would be helpfull to make a link to your pictures, because a lot of people are lazy an don`t make them the work to see after it over the gallerylinks.
Ok I`ve done it

So you are brand new? very good stuff for a beginner!!! Ok in what you should improve....
first try to improve yourself in painting \"clean\" ( means not to paint over the lines e.a. the yellow of the shirt on one of this guys) this is the half of the way to become perfect

second: shading and highlighting is very important to get a great style on a mini!!! here on CMoN there are tons of articles about this stuff so READ IT!! IT IS VERY HELPFULL!!!
Me for myself search there advise for special things until today.
third and last part..... BASING!! To base a mini ceative is like the dessert after a good meal. Try to clue some stones ,skulls , mushrooms or what else on your base.
Do this and post your new stuff. I think we will see a step by step improvement of yourself.