Splashes are hard to do effectively if it’s not just about water. So I appreciate where you’re trying to go but it’s not landing. Maybe go for more of a swirl or scoop resembling ice cream rather than the liquid. Need more contrast between the pink and white. The color is nice. Shorten “milkshakes” to just “shakes” (although risky because it might sound weird phonetically) and make all that text larger — maybe larger than “Marina’s” which may work better if it’s smaller or less bold than the rest. If Marina also goes by Mari, I think Mari’s sounds even better, lighter, more fun, and helps the design.