Make sure you insert your screenshots into your post to make them easier to view
It looks like a pretty good start for an antweight. For low weightclass bots its extra important to make the chassis as small as possible. Your chassis looks pretty tight as is which is good but you might be able to get a little more out of it.
The spike club is a pretty terrible weapon. In stock, the only viable weapons are razors, iron spikes, maces and bear claws. Of those, razors should only be used when they will not come into contact with the opponent's weapons (i.e. in popups) as they have half the HP of other weapons for 70% of the weight, and bear claws should only be used on spinners due to their normals. The choice between maces and irons isn't usually too meaningful. In general, irons give better reach while maces are better at protecting the extender that they're on.
Last thing I would say is to make sure that your motors have enough power. I'm not sure if that's a single pink battery or multiple pinks stacked, but you'll need more than 1 or 2 pinks to power this bot
Good to see new builders giving stock a go :)
