I like the concept but this execution is lacking:
1) Try wedging your ship out it makes a huge difference, in terms of quality improvement this has the biggest but it is more tedious fortunately its easy to learn and in little time your ships could look much better
2) Use a variety of blocks in your builds monotone ships dont stand out as well as those using many colours block types to their advantage Eg. slabs, pipes, light rods and metal meshes for a build employing this look to
3) 3d use different layers to add detail rather than replacing some blocks with those of another colour like with this ship
https://starmadedock.net/content/uss-albatross.5226/