I don't know if anyone has brought this up yet or not, but I'll throw some constructive advice out there if you need it
This is just what I have to say from looking at your screenshots.
-I think you should try using mack tilesets instead of the RTP, they look MUCH better. Your mapping is better then mine was when I first started RPGVX, so I think you'd do pretty well with Mack's tilesets. They can be found here:
http://www.tekepon.net/fsm/modules/refmap/index.php?mode=vx-map (click ENGLISH in the corner to put the page in english, if it isn't already).
-Another hint for mapping. Use Lunarea's fabulous stuff xD and try out some parallex mapping (i havent been on RPGVX for awhile, I may have used the wrong word there, but I will return to my RPGVX ways soon). This can be kind of difficult, so you don't HAVE to do this at all but it makes everything look more cluttered and realistic and there is no limit to how much stuff you can use. I'll attach an example of something I've made with parallex mapping. It's not the most fabulous, but compared to what I'd normally do I was actually quite proud of myself for this one *sniff*.
Anyways, I hope I was of any help! ^^