The two at the bottom look like they are from a texture pack and they don't match with Terraria's style, the Shroomite Lasergun is just a re-colour of the Sandgun with an added bump at the back, The Toxin and the Armour look good, the Sword's outline is to dark and needs to be lightened a little and the Cursed Flamethrower is a colour swap with no outline and just has a green flame instead. A little lazy with the Lasergun and the Flamethrower but the other ones look pretty good.