I just found this project on hackaday:
It seems to be very similar to the blue ROV 2. Is there a difference or is it a copy of what you do?
Here is what they claim in the comments part:
Bluerov and this both used ardusub, and all the other are completely different.
This kind of typical structure looks similar, but all the components are not same
Well, to me, except for the color, it is identical.
What do you think?