The first 2 are fine (except for depth of field isssues) but you haven't handled the reflection problem in shot #3 (rear).
You should have a look at getting yourself a large light tent and 2 or 3 continuous lights with stands to address this.
As for the depth of field issue, use a smaller f stop (f8, f11 or f16) and a longer exposure time (I assume you have a tripod)
Apart from that, the watermark cannot be easily read in any of the shots and is also incomplete (ditch the "whol" and choose a better stroke and fill).
