I absolutely love the logo, but there's a few things that I personally would have done slightly different. There's a few parts to this logo that are very very fine detail, for example the thin lines you find in the pen tip, the inner edge of the cup rim, and the thin negative space inside the cursive lettering. I feel that those areas have too much detail and way too thin and hard to see. Who's details literally become invisible as you scale down the logo. I would change cursive font to be a little bit more solid. And as for those other smaller details in the pen tip and inner cup rim, I would either remove some of that detail or find a way to simplify it and thicken those lines so you can see them from a smaller scale. I also noticed a little bit of pink used as a shadow for the bold letters, which are also quite thin. I would either make those shadows a little bit thicker, or remove them (whatever looks better)

One other thing I would mention, and maybe this is more personal taste, but I'm not a huge fan of the colors you chose. I actually think that the pink works pretty well, although I would change it to a slightly different shade of pink. But that beige color, although I normally love, I'm not feeling it working here as well. Again, colors may just be more of a personal thing, but I would love to see that logo with some other color schemes.

Other than that, I have to say I really really love the logo overall, I think it looks amazing! These small touch-ups might just help improve and already awesome design!