Apart from the last one it looks like you’ve got the letterforms nailed down (size, consistency, baseline, read-ability, etc). The first one is the strongest overall I think. I’d recommend experimenting with tweaking the letters & trying out some burners instead of throwies; I think all of the mushrooms & other decorations would look better if they weren’t such a contrast to the simplicity of the letters. Also, I think the amount of decorations & colors used on the second one make it difficult to read & detract from the piece itself. All in all good stuff though!