I've re-done the piece and have it in the WIP section as I'll keep working on it until it's done rather than clog the gallery with more un-finished pieces.  Thanks.

Whether to outline or not is really personal preference. Try looking around the site at other pieces you like to get a idea of what you think might look good.

I originally did this off of a reference piece and just adapted as needed without any regard for iso... I think I may scrap it and re-do as true iso.  What would work better, lose the outline on the people or add it to the foreground? Thanks for the comments and suggestions.

I love Star Trek. Keep going, not much Trek pixel art. :)

This definitely needs animation! How cool would that be?
As is, I think it needs a bit of reworking. Your perspective is a bit wonky. You might try reviewing some isometric tutorials, and try it that way. Also, the outlined people clash with the not-outlined foreground. I think you should stick to one style in the piece.

I like the idea in general, keep working on it!