If these are indeed your first SB drawings, then it's an outstanding job, well done.
Now I believe you should work on the shading of the underwaterhull, and minor things like lining up the name and credits on the right top corner.
Been here lurking for years until i decided to create my own account and designs. Uhm any tips on how to improve underwater shading, I have troubles on that. Thanks for helping i really appreciate it!
It is easier to unite the heavens and the earth than to make two Filipinos agree on a disputed matter. -General Antonio Luna ( avatar )
Some PH Navy/Coast Guard ships, if time would allow hehe