Thanks for your reply, sergiozh!
I didn't use my microscope for a long time and I have to clean it and to adjust it. But here are some colour photos, its really easy to take them with the GXR M - I made them this evening just after your message!
These are amazing! I love the patterns and colours - makes for really cool abstract pictures. Dare I say it, but you could even consider using them for print patterns on material, or some similar idea... .