I agree to some extent.
1. I wish I had the right pieces to build better engine flaps, because in the actual vehicle they have some curvature rather than being flat. I have a big shipment of Lego coming in later this week and maybe when I revisit this model again, I will focus more on the aft section of the ship using some of those pieces.
2. I will admit that I struggled with the engine angling because my model was much bigger than the default Lego design that I got the engine design from. So in the adaptation, I made some mistakes.
3. This was my first serious attempt at a complex model, so I will also chalk up some mistakes to inexperience. Building this ship taught me a lot.
I just broke down the model this morning because I needed the pieces for another project (a First Order themed AT-ST variant). But I intend on rebuilding this ship in the future.