I noticed a bug with the particles coming from the flowers. The particles are showing a portion of the vanilla particles sheet. Here is a link to a picture of what I am talking about I found a particle bug. It displays a portion of the vanilla particles.png sheet. I haven't experienced any other issues but here is a screenshot of what I am talking about:

Check your config, there's an option for this to be enabled because it looked funny when it was a bug during testing.