Pathways are incredibly helpful with town constructing, and I'd HIGHLY recommend you put down your paths before putting down major PWP's, since you can come to realize that your desired path interferes with a PWP. If you want some pathing ideas, I'd go to
http://pathmagic.tumblr.com or
http://tobimorieko.blog.fc2.com/blog-category-1.html (Make sure to translate the latter into English, and click the Read More button for the QR codes) Demolishing projects sucks, I know, but it's worth a more organized town! (Plus there's a 30 PWP limit in every town)
One thing I noticed right away... right above your town plaza, you planted a lot of saplings down. Did you space them apart? It looks like they're all right next to each other, and if they are directly planted next to each other, they won't grow. You basically got to plant a sapling, make a hole next to it, make another hole next to that hole, and plant your second sapling in the second hole you made.
The water well seems to be in a bit of an odd position, though that may just be me not finding any good place for it personally. Perhaps it'd work better if it was next to the tent that you have up?
You've also got two classic streetlights, and then one different streetlight. This contrast is a bit odd, and I'd recommend staying consistent with the streetlight types if a different one is going to be so close to another kind.
I love the little park you have going there, and you should totally plant more bushes around it make it even more parklike~
I personally don't mind the zen bell placement since I think it works well by being by the pond. I'd recommend adding a bench or two in your little park section that I mentioned earlier. Oh, and flower organization. There's lots of random flowers scattered about, so I'd find the time to pick 'em up and gather them all in an unused corner of the map and maybe start a breeding garden if you're going for hybrids, or just keep them organized over there rather than randomly placed.
Your metal bench right by the waterfall at the end of the map by your house is adorable. Add more flowers there for sure, it'll look great!