Agree on the trigger. needs to be moved to a more vertical position or the shape changed to make it easier to reach.
Rounding a lot of the square edges would improve the aesthetics and ergonomics as well. Grip frame, ASA, front of main body (where barrel is fitted).
A wrap around grip would also help but is not crucial. It would be more comfortable with a wrap around grip instead of the current ergonomic wooden (will be metal) design.
Hope that helps