The first photos should be the best representation of the species, taxon photos shoudl not be used to gain recognition for ones photography, but to show what the organism looks like.
Only make your own photos the first ones if they are objectively the best representation of the species, do not do this to promote your images.
I have made some of my photos among the first that show up, but I only do this when other better photos do not exist (and by better I mean better at illustrating the species, not just better quality)