Looks great. You might want to have the T and the S be the same height so its balanced, and make the space in the panel uniform. Right now to the right and left of your letters has too much space. Maybe a wider face is needed. And for the secondary copy, maybe something with even strokes as opposed to thick/thin as the current typography is not the best viewing from a distance...
What he said. Use an upper case 'S' to match the 'T', leave the apostrophe, if you absolutely have to include it, right where it is.
Since the 'Topsy's' type face is thick and thin you can get away with stretching it a bit, That's a bit, don't go crazy.
The fill in 'Topsy's' is annoying. It's too high, try only going halfway up with it. Moreover the the gradient of the bar sizes is not sufficiently distinct. It should proceed to nothing, not end in a good sized bar. If this were to be printed and not done with cut vinyl, I'd add a gradient transparency to the top of the fill pattern.
The secondary copy is weak. The flourish, which is way too bold, and the outlines overpower it. It should be the second boldest element, either in size or color or whatever.