You have seven very similar pictures, all the same theme (Indian Men).  You must diversity your portfolio and make it larger to see sales.

Stock is a numbers game.  There is an often quoted figure, that is a little out of date now, than one image will make one dollar per year on average.  Which means you need to have a portfolio of thousands to make a living in traditional stock (there are exceptions to the rule).

Basically, you have seven pretty dull images of Indian men, with faked smiles not doing anything.  What exactly do you see your pictures being used for?

Take good photos, keyword them well, upload them, move on to the next.

Honestly thats the best advice you can have, worrying about the best match and where your images appear in search rankings will drive you nuts if you spend too much time on it.
If you have a good photo and keyword it correctly it will sell, if it doesn't it means it aint a good photo or just not one that's right for the site you're on.

I disagree with the 1 dollar per image per year figure.

IS paid out 21 million last year
Portfolio was on average about 2.5 million
which makes about $8.50 per image per year, slightly more for exclusives proabably about $10 and about $5 for non exclusives

p.s size always matters! 

I disagree with the 1 dollar per image per year figure.

IS paid out 21 million last year
Portfolio was on average about 2.5 million
which makes about $8.50 per image per year, slightly more for exclusives proabably about $10 and about $5 for non exclusives

Don't forget, Video has a MUCH higher average selling price.  And Vectors on average sell many more times over than photos.  I would hazard a guess that for anyone doing just photos for a living, 10,000 online would be a good mark to aim for.  Perhaps it was �1 per image per year, which is about $2.  And don't forget I'm talking about the traditional market, Microstock has not got figures like this yet, since it is still in it's infancy.

When I ask people advice about why I cant sell a lot of photos on Istock, they keep telling me that "my portfolio size is too small!". I know that it is small as compared to other people, no doubt!

But at the end of the day, a good image is a good image is a good image.

Size of portfolio is a huge help, although it isn't the only factor - 2000 mediocre images won't do you much good.

There isn't a single, simple formula for how to make a hit stock portfolio, but you could do with some skill building - in prop choice, model poses/expressions (photo styling), lighting and good post processing. Your images aren't bad, but your best seller isn't anything like as appealing as the one you were inspired by.

The reason portfolio size influences things, I think (and realize that even those of us who've been doing this a while are just extrapolating from our experiences; we can't know with certainty) is that buyers sometimes wander through portfolios when they find an image they like; they feel more comfortable buying from someone whose image they bought before and the quality was good; and there is some randomness thrown in (see all the threads about what happened to former best sellers when iStock made a big change in its best match algorithm a while back).

You need to try to get as many things working for you as you can.

If you had 7 truly stellar images, you could probably make tons of sales from them even though your portfolio is small. Your images are OK, but they aren't stellar, and your portfolio is small. Given how hard it is to make stellar images, your best bet at the moment is to try and improve the quality and quantity to tip the odds a bit more in your favor.