It looks like this coaster is heavily based on Baron 1898. The layout looks fun and short just like the most small dive machines.
The heartlining seems to be a bit off. To make the heartlining right, go to the coasterproperties, then mode tab and set the spline position to the heartlining option. Some sections which should be straight like the lift and the brake have a little bend in them. To fix this set the node properties to strict.
The zero-G roll should probably start a little later with its banking. If you sit in the outer left you'll get -3.9 horizontal G which will hurt a lot. The exit of the zero-G roll is good.
So overall the layout looks pretty good but the shaping of the track could be a lot better.