I had my laptop's screen at a slightly sub-optimal angle, and the shadow on the shell completely disappeared. I could not tell that it was supposed to be anything; it read completely as "three colorful abstract shapes and a larger honky-colored abstract shape". What are those three curvy things supposed to be? I dunno, but they completely ruin any hope of the shell reading as a shell at a quick glance; the silhouette is a completely confusing lump.

I am afraid to say that, in my opinion as a professional artist, this logo needs reworking, rethinking, and possibly even complete replacement.