I saw your complex result of simulation it is very stable and RMSD of both protein and ligand less than 2A. You can evaluate your data by some articles.
Article A dynamic simulation study of FDA drug from zinc database ag...
Based on the figure above, the rmsd shows that your system/complex is stable.
However, if you should generate that figure with the first frame during/from MD and not the input coordinates, i think you will get an even better and more satisfying figure.