question - plants?

First- I am a beginner so please don't judge me. Why do my plants look like this? Some are anabuis (first pic) and java fern (second pic) and two are amazon sword (third pic) I've just put most in about a week ago and they're turning brown already.. I put some plant fertilizer in there as well. I have the java fern and anabuis rhizomes glued to driftwood w/ gel glue, and amazon sword is just in the sand. The substrate is just sand, haven't had the chance to get root tabs either. I will answer bot later