Clean, simple designs. Immediately tell us that this is casino and bold enough to look good even in miniature. If I were to have one simple criticism it is that if anything they may look a little too professional. I know this seems like a strange criticism, but there is a danger that if 'Sugar Hut Mobile' looks too pro, it may scare off the less experienced players. Perhaps try introducing a little more colour.
Hi! Thank you very much for your feedback. I do understand what you mean, I think the change in the colours has been useful in order to make the logo less "professional". Do you want me to try any other thing?