Overall, this looks very good. Those Preiser figures have held up quite well, considering they are over 30 years old. I don't see any serious construction issues, the layout works nicely. I really like the open back shed.the card players add a neat little human touch here.
Were the gun pods in two pieces? The one under the right wing looks like there might be an alignment problem. Might also be the casting or just the lighting.
The tracks from the Schwimmwagen look a bit heavy to me for a light vehicle to have driven over the grass just the one time.
One thing I've learned about the Bf-109 from judging these many years, is there should be a panel line running from the canopy to the tail at the middle of the spine. A lot of builders assume this is a seam line that needs correcting. Because of the general confusion about this, I don't penalize a filled line there, but you might want to take note for future reference.
Again, a very good job that shows a lot of promise for you as a builder.