The stations for the Hex and the train both look great, How big is this park goins to be and is this a custom scenery park or is it a regular RCT2 Park with no downloads?
Start out small and build up over time. It doesn`t take much for your cash to wither.
Start by building 4 or 5 rides, food stall, information kiosks and some scenery. If you start off huge, people will get lost and your rating will drop.
You should stick with the name you have and keep building the park and a name will come to you.
Do you have any screenshots of the park or is it in its early stages?
The bowser coaster looks good but you could try to put some scenery in there like some castles for that bowser theme.
Also try adding a few trees. The area around there is kind of empty