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I like the concept here. The way you layered the cloud design is unique and kind of fun. In my opinion, it's not too unprofessional.
My biggest issue is with the actual text. It somehow doesn't tie in with the cloud. Just sort of sits in the middle, looking separate. What about adding a background colour and then having the letters in white, looking like they are a hole in the cloud? On the white background, it gives the illusion that the cloud is simple an outline, rather than one whole piece.

Thank you for your input, I'll try your suggestions