the point of doing 3D art is not to get approval from other people. It's to make things that you will be happy with when you finish them and will be proud of...and obviously look cool. And it's also to better your skills as you go and expand your talent across various styles and genres. The reason why it was pointless for you to keep doing halo stuff, It's the same style, over and over again, with little to no various in complexity, just the amount of time put into it. The one thing that military modeling has to offer (for me anyway) is even though it lacks style and originality, there's still the challenge of creating a complex and large vehicle or weapon while also keeping it within a decent Triangle range, and still have it look ascetically pleasing and realistically convincing. I usually choose something a bit more challenging and complex than the previous thing i modeled.
So choose something that will be fun and challenging.


