Your sticker is your sticker, and has been noted before:
{{One Name Study|name=Labossiere}}
If you wish to put your own image inside it (instead of the little coloured tree book), please follow these steps:
1. You have already uploaded the image you wish to use or, if you wanted to use a different image, you upload that just as you normally would.
2. You create a freespace page and call it "Labossiere Name Study Info".
3. On this page, you put ONLY the following:
<includeonly>{{#switch: {{{1}}}</includeonly>
|image=whateveryouareusing.png
<includeonly>}}</includeonly>
and nothing else (no links, no messages, no images etc), then save.
Now have a look at a profile where you have
{{One Name Study|name=Labossiere}}
and it should have worked! Get back to me if you have any problems.