kat; i'm not the best person to ask about photography, but composition-wise i think you could have zoomed the picture in a little bit more or positioned the shot so that the frame of the door was not so much in the centre. Also, not really sure what you mean by making it look like from an old camera but i take it you mean like, old fashioned. for that you might wanna have the picture have a more sepia-like hue and fade the edges a bit, and have white edges around the picture, not just having it go all the way to the edge.
err, for the atquati one, it looks kind of unrealistic and computer generated. you might wanna play with the shades a little bit so that the different hues and shadows of the water underneath the water are a little more pronounced.
The relcore one - i'm not sure if it's supposed to be upside down but its kind of confusing that way. I can't see any visible manipulations you did, but for the atquati one, i might pay 200k-ish, and 200k for the relcore one.
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