OK well, backstitching didn't quite go as planned, so I've just messed with fonts for a bit. I also changed the size and positions of the flowers slightly so they'd have more detail in the space you required - if that makes sense? basically I imported the image at a larger size and pasted it into the main pattern. but PCStitch wanted to give them millions of colours each! I've tried to reduce them down a bit but I'm not sure about how they look, maybe I'm just being overly critical!
ANYWAY here's the thing I did, I don't know if it's any good to you or not? If not, I'm sure I can figure something out that would look better when I have a minute!
Let me know what you think and if there are changes I can make for you!
EDIT: forgot to say this pattern is for 18ct and is something like 8.5" wide and about 10ish" high
