I think it's fine as-is. If anything I could see maybe 2 or 3 SDs far in front of the Executor and it's 2 escorts (say add one to the left and center that are the same size or even a bit smaller than the one way out in front directly to the right of Hoth), and show them moving to the left, top and right (spreading out, forming the outer part of the net). If there was any problem I have with that shot, it's that I'm left saying: "where's the fleet?"

I would at least move that SD beside the Executor's right and move it little bit more to the right (or top) and put some space between the two. Right now it looks like the driver could easily make a slight left turn and wreck right into the SSD conning tower.