this is very very interesting work...good luck author

WOW!!!! THIS IS WAAAAY COOL!!! FAV'D IT! GL!

Thanks very much, always nice when you wait for that first comment and it comes through as a nice one.

awwww there shouldn't be any bad remarks about this one! I was actually giggling cause I was thinking this same picture but with something else swimming down the tunnel!!! LMAO

oh and for those of you who don't know what i'm talking about I'm sorry it seems I'm laughing at myself .. lol

haha I get you. I could make another model with that version

DO IT DO IT DO IT!!!! ANd make them have smiles on their face and one carrying a map!

Great concept. My only crit is the white edge around the platelets. Image>Adjustments>Selective Color>White, increasing the Magenta, yellow, and black would bring those down and make them match the rest of the image better.

I have a tiny little critical comment. The cells on the inside of your vessel look very unatural. Cells never look like this!
That's one of the reasons why your picture doesn't look real.
Well I know, how difficult that is, because I am modelling biological systems professionally
Otherwise great pic!

the cells are fine but the vein looks very fake other than that a fantastic image

WOW brilliant idea...well done author