I can remember the strange feelings I had when I was a kid looking at those photographs. 我还能记得小时候看那些照片时的奇特感受。

网友的句子完全正确。

1. looking at those photographs 是现在分词短语，但它不是kid 的定语，而是修饰主句谓语动词的“时间状语”。

2. 它跟when 从句都是“时间状语”，共同修饰主句谓语动词，但两个时间之间带有“层次关系”，when I was a kid 表示较大范围的时间，而looking at those photographs 表示较小范围的时间。

网友的句子跟下面的句子相似，均摘自人教版九年级英语课本：

When I was a tiny baby crying all night, my mom sang to me and stayed by my side.

When I was two running through the field, she made sure I was safe and kept me from danger.

这种结构是：when 主语 + be + 名词/年龄 + 现在分词。又如：

1. When I was two running through the field, she made sure I was safe and kept me from danger. 当我两岁在田野里奔跑的时候，她确保我的安全，让我远离危险。

2. When I was seven coughing badly, she said noice-cream for me. 七岁的我剧烈咳嗽，她说我不该吃冰激凌。

3. When I was nine watching scary movies, she said it’d give me awful dreams. 九岁的我看恐怖电影，她说电影会带给我噩梦。

以上三句是在When I was a tiny baby crying all night, my mom sang to me and stayed by my side. 之后，按年龄顺序排列，后面还有一句：

4. When I was a teen going out with friends, she said, ―Please be back by ten!

以上几句均为课本“Mom Knows Best” 的原句。这是一首赞美妈妈的诗歌，特点是按年龄顺序排列，连续使用When 的排比句。为了句子简练，在年龄之后紧跟着一个分词短语，年龄直接用数字表示，连years old 都省去，这都是为了体现诗歌的简练。这些句子中，现在分词的语法作用跟网友的句子相同。