I adore irises!
by the way, you could improve photoshopp-ing of the cover picture slightly by
a) choose Lasso (selecting tool)
b) adjust its "feather" option apparently to 5-10 pixels
c) make a little selection around dog's legs (that have a clearly visible greenish tint left from the grass) and
d) then just use 'desaturate' option up to 30-40 % in a simple and quick way -
thus, it would become more 'neutral' and thus less visible on the grey stone background, and folks will not notice your 1st picture is synthetic. cheers! and a !BEER