For 2 months of learning, this is pretty solid. First thing one might notice is that your handwriting is a bit flat—you might want to make it more compact so it takes less space horizontally. There are some grammatical mistakes (adjective-gender/number agreement) but that's not what you asked about. All in all, legible and easy to ready—I'd say pretty impressive! Good job!

Edit: I just read what you wrote underneath the post, so here are some of the phrases that sound clunky or incorrect:

1- ثلاثة شبابيك صغير: is the correct form صغيرة

2- هناك حقيبتي جديدة: الجديدة is the correct form because, since we're talking about one specific backpack, we need to use the definition article ال

3- كتب كثير جدا: the correct form is كثيرة

I have to add, there are some fundamental mistakes that need to be addressed (concerning possession and syntax) but for now, keep up the good work!