spanner I use ADPro i think its one of the best to convert Jpg to Iff for example the results are Amazing. (if you want I can do for you just tell me what resolution and deph you prefer and I do)
I modify the Blue Ball Image to 640x512 interlaced x16 colors and fits very nice on my A1200.
I send a Private message to Englyst to know if i can use as LOGO for my Personal Software Seal Amiten Software . waiting for response.
(Of course Put everywhere the credits about Englyst for him 3D Art).
meanwhile Englyst give me permission or not here is the result mod blue amiga ball with my idea and seal name.