I like the design of your spider a lot on its own. Its nice, fun and playful, with the bright colors of the flowers harmonizing pretty well with the wires on the neutral tones of the spider's body itself. Your perspective looks pretty good as well. The edges do get a bit wonky though and the shading should have a bit more consistency since the actual body of the spider would be casting shadows on the legs to our left. also cylindrical shapes would have a shade darker after the brightest area of it unless its cast on the very very edge of the viewing angle which wouldn't be the case for every limb... those were nitpicks though.
What brings this guy down is that backgound. The stark white and blue don't complement the spider very well and the positioning of the spider on the canvas itself doesn't sell the strong outreaching perspective of the flowers in hand. I think a more square canvas and cropped in on the spider a bit more would help a lot with that. As for the background itself maybe a single neutral light color like tan would work and definitely a more organic cast shadow under the spider itself that isn't so black, but a darker shade of the background would help it.

either way great work man, fun little spider dude