The design isn't bad, even though it might be a bit bland (in 2 hours though, you don't really have time for anything more complicated).
I think the weapons could be improved:
- The missile's damage is great (especially for a ship of this size), however it isn't a smart missile (it would probably benefit from a beam or missile secondary effect) and with such high damage, a tertiary effect such as ion (not 100%, 50% maybe?) would probably make it far more efficient if the opponents' shields have not been depleted yet (while still being able to destroy a couple dozens of blocks when the shields are down)
Also don't forget that point defense turrets are now much more efficient than before, one missile alone isn't likely to touch a well-protected ship. Not to mention that the missile pumps more than 90% of the total energy of the ship (more on that later).
- This ships seems to rely too much on his missile, the cannons can't destroy armored blocks efficiently due to the high ion effect (the master/slave ratio also exceeds 100%!!! and it's a double cannon, not a quadruple cannon... in fact, maybe you didn't want to slave the cannons?)
The damage you listed isn't the DPS (damage per second) but DPH (damage per hit), the cannons' dps is actually ten times higher (fortunately, 3000/s sounds a bit weak for a ship of this size), I also suspect the ion effect not being properly taken into account (which would make the dps 20 - rather than 10 - times higher... as long as you're hitting shields) but I can't be sure: I didn't test it against an actual target (or calculated the damage by hand)
Although the energy capacity is respectable for a ship of this size, the energy regeneration seems quite mediocre: it is barely enough for the ship to move (btw, the thrust you listed isn't consistent with your screen, I also like ships a bit more responsive, but I guess 1:1 is fine), and the energy replenishes so slowly that the missile cooldown ends before you get the necessary energy to fire another (without firing the cannons or moving). Of course, for big ships, energy systems might be problematic, but in the current state, just 4 lines of 150 reactors should give you roughly 100ke/s more than what you currently have). I think you could largely improve
I won't say anything on the shields/armor as I don't know whether these numbers are high or low compared to other ships of this size.
(I would also put the french version after the english version, maybe in spoiler boxes; je n'ai rien contre le français, mais ça reste un site anglais, la majorité des gens attendent de l'anglais ici, si la première phrase qu'ils voient est écrite dans un langage qu'ils ne connaissent pas, ils vont certainement fermer la page)
Overall, that ship has many flaws, but it's still nicely built for 2h.