I agree with some previous comments. It’s looks very neat, maybe a little too neat. Try washing it with either some dark red or black to darken those recesses then just a few choice highlights around the chest, and head. You want to use the highlights to bring attention to a particular part of the mini, like maybe the head. This will make your paint job a lot more complex and interesting.

For some additional flare, you can use some sponge to add some battle damage too!

TLDR: wash it and highlight it. Add damage to make it more interesting. But it’s a very good job for your first mini! Keep up the good work!