I prefer the cooler dirt colour myself, but I think it depends a lot on the feel you're going for. Colours are pretty easy to adjust later though, when you have more assets and can judge the colours in context.
I think removing the huge clumps of grass works! However, there is still noticeable repetition just because you're using identical grass clumps on different tiles, an issue I pointed out in my last post. You could probably "get away" with having some larger clumps on your tiles, as long as those clumps are only found on one tile each.
When making things like transition tiles, I recommend starting with solid colours instead of chunks of the other tiles, so that you're not tempted to use existing details and have to make new ones. It's not that hard to make the it all tile with each other with this level of detail.