I like the entrance a lot more now that you've expanded on it and the signs.
I'm very unfamiliar with RCT3, but is there any way you could vary the trees a little bit more? I noticed that you said you'd improve your buildings and I'm looking forward to that.
I believe this needs something more to draw us in. Expand on the entrance and maybe add a ride or two with architecture and scenery for next park. Go nuts.